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  1. By: Shrader, J. H. (James Houston),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Bedell, G. H. (George Harold), - Baker, E. W. (Elbert Watkins),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  3. By: Northern Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Valley City, N.D, Northern Seed Co, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  4. By: Murphy's Seed Store. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Albany, Or, Murphy's Seed Store, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  5. By: Ellington Japanese Nursery Company. - Alvin Japanese Nursery and Orchard Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Genoa, Tex, Ellington Japanese Nursery Company, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  6. By: Stewart's Seed Store. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: [Omaha, Neb.], Stewart's Seed Store, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  7. By: Riverside Nursery (Spokane, Wash.) - Jones, R. A. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Spokane, Wash, Riverside Nursery, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  8. By: East Lawn Nursery. - Cruikshanks, A. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Sacramento, Calif, East Lawn Nursery, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  9. By: Littlefield-Wyman Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: North Abington, Mass, Littlefield-Wyman Nurseries, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  10. By: George D. Aiken (Firm) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Putney, Vt, George D. Aiken, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  11. By: Valdesian Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Bostic, N.C, Valdesian Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  12. By: Holsinger Brothers Nurseries. - Lake, E. R. (Edward Ralph), - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Rosedale, Kan, Holsinger Bros, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  13. By: N.L. Willet Seed Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Augusta, Ga, N.L. Willet Seed Co, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  14. By: Beck, Rollo Howard, - American Museum of Natural History - American Museum of Natural History. Department of Ornithology. Whitney South Sea Expeditions Collection. - Whitney South Sea Expedition of the American Museum of Natural History (1920-1941)
    Publication info: [1920-1921]
    Holding Institution: American Museum of Natural History Library
    BHL Collections: BHL Field Notes Project
  15. By: Northwest Nursery Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Valley City, N.D, Northwest Nursery Co, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  16. By: Spring Hill Nurseries. - Peter Bohlender & Sons. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Tippecanoe City, [Miami County], Ohio, Spring Hill Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  17. By: Van Dusen Nurseries. - McKay, C. C. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Geneva, N.Y, Van Dusen Nurseries, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  18. By: Wooster Nursery Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Wooster, Ohio, Wooster Nursery Company, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  19. By: William Tricker Inc. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection. - William Tricker Inc.
    Publication info: Arlington, N.J, Wm. Tricker, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  20. By: Fairbury Nurseries. - Hurlburt, C. M. - C.M. Hurlburt (Firm) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Fairbury, Neb, C.M. Hurlburt, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  21. By: California Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: San Francisco, Calif, California Seed Co, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  22. By: Kelly Bros. Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Dansville, N.Y, Kelly Bros. Wholesale Nurseries, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  23. By: Paradise Valley Poultry Ranch, National City, California.
    Publication info: San Diego, Frye & Smith], 1920
    Holding Institution: University of California Libraries
  24. By: C.S. Brent Seed Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Lexington, Ky, C.S. Brent Seed Co. Incorporated, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  25. By: Austin Nursery. - F.T. Ramsey & Son. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Austin, Tex, F.T. Ramsey & Son, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  26. By: D. Landreth Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: [Bristol, Pa, D. Landreth Seed Company], 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  27. By: Alpha Nursery. - Wirt, George G. - Wirt, H. G. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Alpha, Ill, Alpha Nursery, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  28. By: Harry L. Squires (Firm) - Squires, Harry L. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Good Ground, N.Y, Harry L. Squires, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  29. By: Huth Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: San Antonio, Tex, Huth Seed Company, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  30. By: Michael N. Borgo (Firm) - Borgo, Michael N. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Vineland, N.J, Michael N. Borgo, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  31. By: Hoermann Seed Store. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Terre Haute, Ind, Hoermann Seed Store, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  32. By: Parker Brothers Nursery Company. - Fayetteville Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Fayetteville, Ark, Parker Bros. Nursery Co, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  33. By: H.H. Benning (Firm) - Benning, H. H. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Clyde, N.Y, H.H. Benning, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  34. By: N. Harold Cottam & Son. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Wappingers Falls, N.Y, N. Harold Cottam & Son, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  35. By: Dahliadel Nurseries. - Maytrott, Warren W. (Warren Wiley), - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Vineland, N.J, Dahliadel Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  36. By: Leonard & Weber. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Trenton, N.J, Leonard & Weber, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  37. By: Davies & Fine, Inc. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Wilkes-Barre, Pa, Davies & Fine, Inc, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  38. By: T. A. Hightower Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Hattiesburg, Miss, T. A. Hightower Seed Company, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  39. By: Independence Nurseries (Independence, Ohio) - Buskirk, A. S. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Independence, Ohio, Independence Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  40. By: Lake Nursery Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Leesburg, Fla, Lake Nursery Company (Incorporated), [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  41. By: American Art Association. - Kirby, Thomas Ellis,
    Publication info: New York, American Art Association, 1920
    Holding Institution: University of California Libraries
  42. By: Brunetti, E. (Enrico),
    Publication info: Calcutta, Zoological Society of India, 1920
    Holding Institution: Smithsonian Libraries and Archives
  43. By: John Wilk (Firm) - Wilk, John - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: New York City, N.Y, John Wilk, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  44. By: Kallay Bros. Co. (Painesville, Ohio) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Painesville, Ohio, Kallay Bros. Co, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  45. By: Chicaskia Valley Nurseries. - Tetirick, J. Willis. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Blackwell, Okla, Chicaskia Valley Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  46. By: Leng, Charles W. (Charles William), - Wickham, H. F. (Henry Frederick), - Mutchler, Andrew Johnson
    Publication info: Mount Vernon, N. Y, J. D. Sherman, Jr, 1920
    Holding Institution: MBLWHOI Library
  47. By: Leng, Charles W. (Charles William), - Mutchler, Andrew Johnson - Mutchler, Andrew Johnson - Wickham, H. F. (Henry Frederick), - Wickham, H. F. (Henry Frederick),
    Publication info: Mount Vernon, N.Y, J.D. Sherman, Jr, 1920-
    Holding Institution: Multiple institutions
  48. By: Jennings Nursery. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Jennings, La, Buch Printing Co, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  49. By: Litson Nursery. - Litson, W. H. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Nevada, Mo, Litson Nursery, [1920?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  50. By: David Rodway (Firm) - Rodway, David. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Hartly, Del, David Rodway, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  51. By: S.C. Atherton (Firm) - Atherton, S. C. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Greenwood, Del, S.C. Atherton, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  52. By: Storrs & Harrison Co. - Painesville Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Painesville, Ohio, Storrs & Harrison Co, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  53. By: Michaels, Edwin D.
    Publication info: Philadelphia, Pa, E. Michaels, c1920
    Holding Institution: Library of Congress
  54. By: B. Hammond Tracy, Inc. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Wenham, Mass, B. Hammond Tracy, Inc, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  55. By: B. Hammond Tracy, Inc. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Wenham, Mass, B. Hammond Tracy, Inc, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  56. By: Goetghebuer, Maurice.
    Publication info: Bruxelles, Hayez, imprimeur de l'Académie royale de Belgique, 1920
    Holding Institution: Smithsonian Libraries and Archives
  57. By: Velenovský, J. (Josef),
    Publication info: Praze, České Botanické Společnosti, 1920-1922
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
  58. By: Chaapel's Seed Store. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Williamsport, Pa, Chaapel's Seed Store, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  59. By: Champion Nurseries. - H.J. Champion & Son. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Perry, Ohio, Champion Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  60. By: C.E. Chapman (Firm) - Chapman, C. E. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: North Stonington, Conn, C.E. Chapman, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  61. By: Chas. M. Baumgarlen Seed Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Bay City, Mich, Chas. M. Baumgarlen Seed Co, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  62. By: Chase Nursery Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Chase, Ala, The Nursery, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  63. By: Chaìves, Diocleciano
    Publication info: 1920-1930
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  64. By: Britton, Wilton Everett, - State Geological and Natural History Survey of Connecticut.
    Publication info: Hartford, Printed for the State Geological and Natural History Survey, 1920
    Holding Institution: University of California Libraries
    BHL Collections: Expanding Access to Biodiversity Literature
  65. By: Britton, Wilton Everett,
    Publication info: Hartford, State Geological and Natural History Survey, 1920
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    BHL Collections: Expanding Access to Biodiversity Literature
  66. By: Britton, Wilton Everett,
    Publication info: Hartford, State Geological and Natural History Survey, 1920
    Holding Institution: Smithsonian Libraries and Archives
    BHL Collections: Expanding Access to Biodiversity Literature
  67. By: Collins, Sidney Hoare,
    Publication info: London, Baillière, Tindall and Cox, 1920
    Holding Institution: University of California Libraries
  68. By: Boyer, Edward Everett Hale,
    Publication info: Ann Arbor, Mich, Edwards brothers, 1920
    Holding Institution: University of California Libraries
  69. By: Wells, H. Gideon (Harry Gideon),
    Edition: 4th ed.
    Publication info: Philadelphia, W. B. Saunders company, 1920
    Holding Institution: University of California Libraries
  70. By: Hilts, Roy Wilson, - Hollingshead, R. S. (Robert Sullivan),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  71. By: Langelier, G. A. (Gus A.) - Dominion Experimental Farms and Stations (Canada)
    Publication info: Ottawa, T. Mulvey, 1920
    Holding Institution: Canadiana.org
  72. By: Chicago Flexible Shaft Company.
    Publication info: Chicago, Chicago Flexible Shaft Co., Chicago, Ill., U.S.A., 142-144 Ontario Street, [1920?]
    Holding Institution: NCSU Libraries
  73. By: Abbott, Henry,
    Publication info: New York, [s.n.], 1920
    Holding Institution: University of California Libraries
  74. By: John Lewis Childs (Firm) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Floral Park, N.Y, John Lewis Childs, Inc, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  75. By: John Lewis Childs (Firm) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Floral Park, N.Y, John Lewis Childs, Inc, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  76. By: Garden Nurseries. - Wohlert, A. E. (Anton Emil), - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Narberth, Pa, Garden Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  77. By: Chipola Nursery. - Hinsey, G. W. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Wewahitchka, Fla, Chipola Nursery, [1920?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  78. By: Wolcott Nurseries. - Women's National Agricultural and Horticultural Association (U.S.) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Jackson, Mich, Wolcott Nurseries, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  79. By: Richard Lohrmann (Firm) - Lohrmann, Richard. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: San Rafael, Calif, West End Nursery, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  80. By: F.R. Pierson (Firm) - Pierson, F. R. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Tarrytown, N.Y, F.R. Pierson, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  81. By: C.S. Pratt (Firm) - Pratt, Charles S. - C.S. Pratt's Nursery. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Athol, Mass, Sunnyside Fruit Farm, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  82. By: Kavan Nurseries. - Kavan Bros. & Currier. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: San Bernardino, Calif, Kavan Nurseries, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  83. By: Wichita Nurseries & Seed House. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Wichita, Kan, Wichita Nurseries & Seed House, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  84. By: Weigel, C. A. (Charles Adolph) - Sanford, Herbert Luther,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  85. By: Elmer D. Smith & Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Adrian, Mich, Elmer D. Smith & Co, c1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  86. By: Crane, D. B. - Sanders, T. W. (Thomas William),
    Edition: 4th ed.
    Publication info: London, W.H. & L. Collingridge, [©1920]
    Holding Institution: Pennsylvania Horticultural Society
    BHL Collections: Expanding Access to Biodiversity Literature
  87. By: Charles H. Totty (Firm) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Madison, N.J, Charles H. Totty Company, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  88. By: Sadie A. Thomas (Firm) - Thomas, Sadie A. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Pasadena, Calif, Sadie A. Thomas,
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  89. By: Lawson, Paul Bowen, - University of Kansas. Museum of Natural History.
    Publication info: Lawrence, Kansas, University of Kansas, 1920
    Holding Institution: University of California Libraries
  90. By: Shamel, A. D. (Archibald Dixon),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  91. By: Shamel, A. D.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  92. By: Kelly, Ernest, - Clement, Clarence Elbert,
    Publication info: Washington, [Govt. print. off.], 1920
    Holding Institution: Library of Congress
  93. By: Kelly, Ernest, - Clement, Clarence E. (Clarence Elbert),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  94. By: United States. Bureau of Fisheries.
    Publication info: Washington, Govt. print. off, 1920
    Holding Institution: Library of Congress
  95. By: Knapp, George Osmon, - Mason, Burton B., - Swarthout, A. V. (Arthur Vance),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  96. By: Hope, Charles Edward,
    Edition: [3d ed.] ...
    Publication info: Victoria, B.C, Printed by W.H. Cullin, printer to the King's most excellent Majesty, 1920
    Holding Institution: University of California Libraries
  97. By: Urbahns, T. D. (Theodore Dietrich),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  98. By: Tower, Daniel Gordon, - Fenton, F. A. (Frederick Azel),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  99. By: Wildermuth, V. L. - Gates, Frank Herbert,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  100. By: Hansen, Albert A.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  101. By: Hansen, Albert A.
    Publication info: Wash, 1920
    Holding Institution: Library of Congress
  102. By: Knapp, Arthur William
    Publication info: London, Chapman, 1920
    Holding Institution: University of Toronto - Earth Sciences Library (Noranda)
  103. By: Knapp, Arthur William
    Publication info: London, Chapman and Hall, ltd, 1920
    Holding Institution: University of California Libraries
  104. By: Browne, Edith A.,
    Publication info: London, A. & C. Black, ltd, 1920
    Holding Institution: University of California Libraries
  105. By: B.E. & J.T. Cokely. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Scranton, Pa, B.E. & J.T. Cokely, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  106. By: Free Public Library (New Bedford, Mass.)
    Edition: 2d ed., April 1920.
    Publication info: New Bedford, 1920
    Holding Institution: University of California Libraries
  107. By: Cook, Melville Thurston,
    Publication info: Philadelphia, Lippincott, 1920
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  108. By: Cook, Melville Thurston,
    Publication info: Philadelphia and J. B. Lippincott Company [c1920]
    Holding Institution: Cornell University Library
  109. By: Arthur J. Collins & Son. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Moorestown, N.J, Arthur J. Collins & Son, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  110. By: Colmant Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: [West End, Ala.], Colmant Nurseries, [1920?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  111. By: Comal Springs Nursery. - Locke, Otto. - Otto Locke (Firm) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: New Braunfels, Comal County, Tex, Otto Locke, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  112. By: Gardner Nursery Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Osage, Iowa, Gardner Nursery Company, 1920?
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  113. By: Roberts, Howard Armstrong,
    Publication info: Philadelphia, D. McKay, [c1920]
    Holding Institution: Library of Congress
  114. By: Roberts, H. Armstrong (Howard Armstrong),
    Publication info: Philadelphia, D. McKay, [c1920]
    Holding Institution: Cornell University Library
  115. By: Krieger, L. C. C. (Louis Charles Christopher),
    Publication info: Washington, National Geographic Society, 1920
    Holding Institution: Dorothy H. Hoover Library, Ontario College of Art & Design
  116. By: Washburne, Carleton Wolsey,
    Publication info: Yonkers-on-Hudson, World Book Company, 1920
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  117. By: Washburne, Carleton Wolsey,
    Publication info: Yonkers on Hudson, N. Y, World book company, 1920
    Holding Institution: University of California Libraries
  118. By: McGinnis, Helen Anastasia.
    Publication info: 1920
    Holding Institution: University Library, University of Illinois Urbana Champaign
  119. By: Lázaro é Ibiza, Blas,
    Publication info: Madrid : Imprenta Clásica Española. Glorieta de Chamberí, 1920
    Holding Institution: Biblioteca Digital del Real Jardín Botánico de Madrid
  120. By: Lázaro é Ibiza, Blas,
    Publication info: Madrid : Imprenta Clásica Española. Glorieta de Chamberí, 1920
    Holding Institution: Biblioteca Digital del Real Jardín Botánico de Madrid
  121. By: Walton, Izaak,
    Publication info: London, J.M. Dent & Co, [1920]
    Holding Institution: University of California Libraries
  122. By: Shaw, Fred. G.
    Edition: 2d ed.
    Publication info: London, Frederick George Shaw, 1920
    Holding Institution: University of California Libraries
  123. By: Kelley, W. P. (Walter Pearson), - Cummins, Arthur Benson.
    Publication info: Washington, 1920
    Holding Institution: University Library, University of Illinois Urbana Champaign
  124. By: Conard & Jones Co. (West Grove, Pa.) - Conard & Jones Co. (West Grove, Pa.) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: West Grove, Pa, Conard & Jones Co, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  125. By: Bofill y Poch, Arturo, - Haas, Fritz,
    Publication info: Barcelona, Museu Martorell, Passeig de la industria, 1920
    Holding Institution: Smithsonian Libraries and Archives
    BHL Collections: Publicaciones en Español
  126. By: Forbes, Stephen Alfred, - Miller, Robert B. (Robert Barclay)
    Publication info: Urbana, 1920
    Holding Institution: University Library, University of Illinois Urbana Champaign
  127. By: Washington Nursery Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Toppenish, Wash, Washington Nursery Company, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  128. By: Gardner's Nurseries (Kennewick, Wash.) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Kennewick, Wash, Gardner's Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  129. By: Home Nursery Company (McCune, Kan.) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  130. By: Newton Nurseries. - Woodham, J. R. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Newton, Miss, Newton Nurseries, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  131. By: Hunziker, Otto Frederick,
    Edition: 3d ed., rev. and enl. Prepared for the use of milk condenseries, dairy students and pure food departments ...
    Publication info: La Grange, Illinous, The author, 1920
    Holding Institution: University of California Libraries
  132. Publication info: Kingston, The Jackson press, [1920]
    Holding Institution: Cornell University Library
  133. By: Baumgartner, F. W.
    Publication info: Kingston, Ont, Jackson Press, 1920
    Holding Institution: Internet Archive
  134. By: Hunziker, Otto Frederick,
    Publication info: La Fayette, Ind, The author, 1920
    Holding Institution: Cornell University Library
  135. By: Hunziker, Otto Frederick,
    Publication info: La Grange, Ill, The author, 1920
    Holding Institution: University of California Libraries
  136. By: New Haven Nurseries (New Haven, Mo.) - Bagby, R. J. - Bagby, J. L. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: New Haven, Mo, New Haven Nurseries, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  137. By: Condon Brothers. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Rockford, Ill, Condon Bros, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  138. By: Courtin, André
    Publication info: Paris, Payot, 1920
    Holding Institution: University of Toronto - Robarts Library
  139. By: Coltman-Rogers, Charles,
    Publication info: London, J. Murray, 1920
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
  140. By: Coltman-Rogers, Charles,
    Publication info: New York, Macmillan, 1920
    Holding Institution: Cornell University Library
  141. By: S.G. Harris (Firm) - Harris, S. G. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Tarrytown, N.Y, S.G. Harris, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  142. By: Lindsay, Lionel, Sir,
    Publication info: Sydney, Angus & Robertson, 1920
    Holding Institution: University of Toronto - Robarts Library
  143. By: Canada. Commission of Conservation.
    Publication info: Ottawa, T. Mulvey, printer, 1920
    Holding Institution: University of British Columbia Library
  144. By: Fairbanks, Harold Wellman,
    Publication info: Yonkers-on-Hudson, N.Y, World book company, 1920
    Holding Institution: Cornell University Library
  145. By: Lane, Franklin K.
    Publication info: Washington, Govt. Print. Off, 1920
    Holding Institution: University of California Libraries
  146. By: Cat Fanciers' Federation.
    Publication info: [Canada?, Cat Fanciers Federation?], 1920
    Holding Institution: Canadiana.org
  147. By: Bridgman, George Brant, - William Edwin Rudge (Firm)
    Publication info: Pelham, N.Y, Edward C. Bridgman, c1920
    Holding Institution: Internet Archive
  148. By: Pieters-Wheeler Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Gilroy, Calif, Pieters-Wheeler Seed Company, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  149. By: Johansen-Winslow Company. - Victor Johansen Seed Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Los Angeles, Calif, Johansen-Winslow Co, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  150. By: Crosman Brothers Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Rochester, N.Y, Crosman Bros. Co, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  151. By: Geo. R. Pedrick & Son. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Pedricktown, N.J, Geo. R. Pedrick & Son, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  152. By: Kimberlin Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Santa Clara, Calif, Kimberlin Seed Company, [1920?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  153. By: Font Quer, P. (Pio),
    Publication info: Barcelona : Museu Martorell (Imprenta de Henrich I C.ª, en comandita.--Còrcega 348, Barcelona), 1920
    Holding Institution: Biblioteca Digital del Real Jardín Botánico de Madrid
  154. By: Velásquez, Manuel A. - Maldonado, Angel.
    Publication info: Lima, Sanmarti y ca, [1920?]
    Holding Institution: The New York Academy of Medicine
    BHL Collections: Publicaciones en Español
  155. By: Del Ponte, Eduardo
    Publication info: Buenos Aires, Instituto Bacteriologia, Departemento Nacional de Higiene, 1920-1925
    Holding Institution: Smithsonian Libraries and Archives
    BHL Collections: Publicaciones en Español
  156. By: Thériot, I. (Irénée),
    Publication info: Le Havre : Imprimerie Micaux frères, 34 bis, rue de la Bourse, 1920
    Holding Institution: Biblioteca Digital del Real Jardín Botánico de Madrid
  157. By: Haan, Henri Rudolph Mari de.
    Publication info: Groningen, De Waal, 1920
    Holding Institution: University Library, University of Illinois Urbana Champaign
  158. By: Dehaut, Émile-Georges
    Publication info: Paris, P. Lechevalier, 1920
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  159. By: Wesenberg-Lund, C. (Carl),
    Publication info: København, A. F. Høst & søn, 1920-21
    Holding Institution: University of California Libraries
  160. By: Wesenberg-Lund, C. (Carl),
    Publication info: Kobenhavn, A.F. Host & Son, 1920-21
    Holding Institution: Smithsonian Libraries and Archives
  161. By: May, Henry G. (Henry Gustav),
    Publication info: Urbana, Ill, University of Illinois, c1920
    Holding Institution: University Library, University of Illinois Urbana Champaign
  162. By: Dixon, Joseph S. (Joseph Scattergood),
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  163. By: Ingerson, H. G. (Howard George), - Runner, G. A. (George Alfred),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  164. By: Meier, F. C. (Fred Campbell),
    Publication info: Wash, 1920
    Holding Institution: Library of Congress
  165. By: Meredith, Edwin Thomas,
    Publication info: Washington, Govt. print. off.], 1920
    Holding Institution: Library of Congress
  166. By: Hamilton, William F. (William Ferguson)
    Publication info: Berkeley, Calif, 1920
    Holding Institution: University of California Libraries
  167. By: Williams, Charles Burgess, - Hill, Daniel Harvey,
    Publication info: Boston, Ginn and Company, c1920
    Holding Institution: NCSU Libraries
  168. By: Williams, Charles Burgess, - Hill, Daniel Harvey,
    Publication info: Boston, Ginn, [c1920]
    Holding Institution: Library of Congress
  169. By: Montgomery, E. G. (Edward Gerrard),
    Edition: Rev. ed.
    Publication info: New York, Macmillan, 1920
    Holding Institution: Library of Congress
  170. By: Kirk, L. E. (Lawrence Eldred), - Harrington, J. B. - University of Saskatchewan. College of Agriculture.
    Publication info: Regina, J.W. Reid, [1920?]
    Holding Institution: Canadiana.org
  171. By: Cornelio, ?
    Publication info: 1920-1968
    Holding Institution: Smithsonian Institution Archives
    BHL Collections: Smithsonian Field Books collection
  172. By: Mount Desert Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Bar Harbor, Me, Mount Desert Nurseries, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  173. By: Charles Johnson (Firm) - Denaiffe & Son (Carignan (Ardennes, France)) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Marietta, Pa, Charles Johnson, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  174. By: Miller, G. H. (George Harvey),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  175. By: Moorhouse, L. A. (Llewellyn Alexander) - Cooper, Maurice R. (Maurice Royce),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  176. By: Coad, B. R. - Cassidy, T. P. (Tom Part),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  177. By: Bell, G. Arthur (George Arthur), - Williams, J. O. (John Oscar),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 929
    Holding Institution: Multiple institutions
  178. By: Lewis, Frederic T. (Frederic Thomas),
    Publication info: 1920
    Holding Institution: University Library, University of Illinois Urbana Champaign
  179. By: United States. Department of Agriculture.
    Publication info: Wash, 1920
    Holding Institution: Library of Congress
  180. By: Alexander, Charles P. (Charles Paul),
    Publication info: Ithaca, 1920
    Holding Institution: University of California Libraries
  181. By: Springer, Frank,
    Publication info: Washington [D.C.], Smithsonian Institution, 1920
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  182. By: A.N. Pierson, Inc. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Edition: Greenhouse plant edition.
    Publication info: Cromwell, Conn, A.N. Pierson, Inc, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  183. By: A.N. Pierson, Inc. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Cromwell, Conn, A.N. Pierson, Inc, c1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  184. By: United States. Plant Disease Survey.
    Publication info: [Washington, D.C.], Plant Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  185. By: Kalmbach, E. R. (Edwin Richard),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: Multiple institutions
  186. By: Wilson, Orville Turner,
    Publication info: Chicago, 1920
    Holding Institution: Library of Congress
  187. By: Calman, W. T. (William Thomas), - Canadian Arctic Expedition (1913-1918)
    Publication info: Ottawa, T. Mulvey, 1920
    Holding Institution: Canadiana.org
  188. By: Boone, Lee, - Canadian Arctic Expedition (1913-1918)
    Publication info: Ottawa, T. Mulvey, 1920
    Holding Institution: Canadiana.org
  189. By: Shoemaker, Clarence R., - Canadian Arctic Expedition (1913-1918)
    Publication info: Ottawa, T. Mulvey, 1920
    Holding Institution: Canadiana.org
  190. By: Juday, Chancey, - Canadian Arctic Expedition (1913-1918)
    Publication info: Ottawa, T. Mulvey, 1920
    Holding Institution: Canadiana.org
  191. By: Marsh, C. Dwight (Charles Dwight), - Canadian Arctic Expedition (1913-1918)
    Publication info: Ottawa, J. de L. Taché, 1920
    Holding Institution: Canadiana.org
  192. By: Willey, Arthur, - Canadian Arctic Expedition (1913-1918)
    Publication info: Ottawa, T. Mulvey, 1920
    Holding Institution: Canadiana.org
  193. By: Wilson, Charles Branch, - Canadian Arctic Expedition (1913-1918)
    Publication info: Ottawa, T. Mulvey, 1920
    Holding Institution: Canadiana.org
  194. By: C.S. Clark & Son. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Wakeman, Ohio, C.S. Clark & Son, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  195. By: Grieve, Maude (Sophia Emma Magdalene Law), - British Guild of Herb Growers.
    Publication info: s.l, s.n, 1920?
    Holding Institution: Wellcome Library
  196. By: Cosens, Gordon G.
    Publication info: [1920?]
    Holding Institution: University of Toronto - Robarts Library
  197. By: Paranjpe, H. P. - Bombay (Presidency). Department of Land Records and Agriculture.
    Publication info: Poona, Printed at the Yeravda Prison Press, 1920
    Holding Institution: University of California Libraries
  198. By: Du Pont de Nemours, Alicia.
    Publication info: New York, Brentano's, 1920
    Holding Institution: Library of Congress
  199. By: J.K. Alexander (Firm) - Alexander, John K. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: East Bridgewater, Mass, J.K. Alexander, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  200. By: Colorado Seed Company. - Root, C. R. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Denver, Colo, Colorado Seed Company, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  201. By: Cunningham, D. J. (Daniel John), - Robinson, Arthur,
    Edition: 7th ed. / revised and edited by Arthur Robinson
    Publication info: London, Humphrey Milford, Oxford University Press, 1920
    Holding Institution: University of California Libraries
  202. By: Husmann, George C. (George Charles),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  203. By: Wood, Stubbs & Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Louisville, Ky, Woods, Stubbs & Co., Incorporated, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  204. By: Cutler & Downing Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Benton Harbor, Mich, Cutler & Downing Nurseries, [1920?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  205. By: C.W. Stuart & Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Newark, N.Y, C.W. Stuart & Co, [1920?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  206. By: American Bulb Company. - Ferd. Fischer (Wiesbaden-Aukamm, Germany) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Chicago, Ill, American Bulb Co, [1920]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  207. By: Herbert, F. B. (Frank Barnes),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1920
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  208. By: Agar, W. E. (Wilfred Eade),
    Publication info: London, Macmillan and Co., limited, 1920
    Holding Institution: Wellesley College Library
  209. By: Agar, W. E. (Wilfred Eade),
    Publication info: London, Macmillan, 1920
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  210. By: Agar, W. E. (Wilfred Eade),
    Publication info: London, Macmillan, 1920
    Holding Institution: NCSU Libraries
  211. By: Agar, W. E. (Wilfred Eade),
    Publication info: London, Macmillan and Co., limited, 1920
    Holding Institution: University of California Libraries
  212. By: Conard & Jones Co. (West Grove, Pa.) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: West Grove, Pa, Conard & Jones Co, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  213. By: J. B. Savage (Firm) - Savage, J. B. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Weirwood, Va, J. B. Savage, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  214. By: Advance Dahlia Gardens. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Compton, Calif, Advance Dahlia Gardens, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  215. By: Wickson, Edward J. (Edward James),
    Edition: 9th ed.--fully rev.
    Publication info: San Francisco, Pacific Rural Press, 1921
    Holding Institution: Multiple institutions
  216. By: Carl Purdy (Firm) - Purdy, Carl, - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Ukiah, Mendocino County, Calif, Carl Purdy, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  217. By: Hogan, Walter, - American Poultry School.
    Publication info: Kansas City, Mo, c1921
    Holding Institution: Library of Congress
  218. By: Deerr, Noël,
    Edition: 2d (rev. and enl.) ed.
    Publication info: London, N. Rodger, 1921
    Holding Institution: Multiple institutions
  219. By: Roman J. Irwin (Firm) - Irwin, Roman J. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: New York, N.Y, Roman J. Irwin, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  220. By: American Bulb Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Chicago, Ill, American Bulb Co, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  221. By: United States. Bureau of Fisheries.
    Publication info: Washington, Govt. print. off, 1921
    Holding Institution: Library of Congress
  222. By: Lee, Alfred R.,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1921
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  223. By: Carlson's Dahlia Gardens. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Boulder, Colo, Carlson's Dahlia Gardens, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  224. By: Roman J. Irwin (Firm) - Irwin, Roman J. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: New York, Roman J. Irwin, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  225. By: Harlan P. Kelsey (Firm) - Kelsey, Harlan P. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Salem, Massachusetts, Harlan P. Kelsey, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  226. By: Carters Tested Seeds, Inc. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Boston, Mass, Carters Tested Seeds, Inc, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  227. By: Carters Tested Seeds, Inc. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Boston, Mass, Carters Tested Seeds, Inc, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  228. By: Blanchard, Frieda Cobb,
    Publication info: [Baltimore], 1921
    Holding Institution: University of California Libraries
  229. By: Clinton Falls Nursery Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Owatonna, Minn, Clinton Falls Nursery Co, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  230. By: Clinton Falls Nursery Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Owatonna, Minnesota, Clinton Falls Nursery Co, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  231. By: James MacGregor (Firm) - MacGregor, James. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Braintree, Mass, James Macgregor, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  232. By: Murphy's Seed Store. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Albany, Or, Murphy's Seed Store, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  233. By: Frankston Nursery Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Frankston, Tex, Frankston Nursery Co, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  234. By: Littlefield-Wyman Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: North Abington, Mass, Littlefield-Wyman Nurseries, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  235. By: Northern Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Valley City, N.D, Northern Seed Co, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  236. By: Austin Nursery. - F.T. Ramsey & Son. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Austin, Tex, F.T. Ramsey & Son, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  237. By: Morris & Snow Seed Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Los Angeles, Calif, Morris & Snow Seed Co, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  238. By: Gill Bros. Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Portland, Or, Gill Bros. Seed Co, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  239. By: Stewart's Seed Store. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Omaha, Neb, Stewart's Seed Store, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  240. By: P. Vos & Son. - Vos, Pieter. - Vos, Gerrit. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Grand Rapids, Mich, P. Vos & Son, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  241. By: Inter-State Nurseries. - C.M. Griffing & Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Jacksonville, Fla, C.M. Griffing & Co, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  242. By: Henry Emlong & Sons. - Stevensville Nurseries. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Stevensville, Mich, Henry Emlong & Sons, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  243. By: George D. Aiken (Firm) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Putney, Vt, George D. Aiken, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  244. By: Henry Field Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Shenandoah, Iowa, Henry Field Seed Co, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  245. By: John F. Croom & Bro. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Magnolia, N.C, John F. Croom & Bro, [1921?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  246. By: Holsinger Brothers. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Rosedale, Kan, Holsinger Bros, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  247. By: Smith Brothers Seed Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Auburn, N.Y, Smith Bros. Seed Company, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  248. By: Joseph Manda Company. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: West Orange, N.J, Joseph Manda Company, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  249. By: Quaker Hill Nursery Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Newark, N.Y, Quaker Hill Nursery Co, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
  250. By: Ransom Seed Co. - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.
    Publication info: Geneva, Ohio, Ransom Seed Co, [1921]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    BHL Collections: Seed & Nursery Catalogs
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  1. By: Crampton, Guy Chester,
    Type: Article
    In: Psyche
    Volume: 27
    Date: 1920
    Page Range: 34--45
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  2. By: Pérez, Charles
    Type: Article
    In: Comptes rendus des séances de la Société de biologie
    Volume: 83
    Date: 1920
    Page Range: 1027--1029
    Publication Info: Paris, Masson et Cie, 1916-1921
  3. By: MacDougal, Daniel Trembly, - Spoehr, H. A. (Herman Augustus),
    Type: Article
    In: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge
    Volume: 59
    Issue: 220
    Date: 1920
    Page Range: 150--170
    Publication Info: Philadelphia, American Philosophical Society,
  4. By: Magness, J R
    Type: Article
    In: Botanical gazette
    Volume: 70
    Issue: 4
    Date: 1920
    Page Range: 308--316
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991
  5. Type: Article
    In: Proceedings of the Malacological Society of London
    Volume: 14
    Date: 1920
    Page Range: 74--76
    Publication Info: London, Dulau,
  6. By: Herbert, D A
    Type: Article
    In: Journal of the Royal Society of Western Australia
    Volume: 6
    Date: 1920
    Page Range: 71--74
    Publication Info: Perth, The Society, 1915
  7. Type: Article
    In: Entomologische Mitteilungen
    Volume: 9
    Date: 1920
    Page Range: 181--184
    Publication Info: [Berlin, Deutsches Entomologisches Institut der Kaiser Wilhelm-gesellschaft, 1912-1928]
  8. By: Letelier E., Miguel.
    Type: Article
    In: Anales de la Universidad de Chile
    Volume: 146
    Date: 1920
    Page Range: 45--53
    Publication Info: Santiago,
  9. By: Travassos, Lauro,
    Type: Article
    In: Memórias do Instituto Oswaldo Cruz
    Volume: 12
    Date: 1920
    Page Range: 73--77
    Publication Info: Rio de Janeiro,
  10. By: Travassos, Lauro,
    Type: Article
    In: Memórias do Instituto Oswaldo Cruz
    Volume: 12
    Date: 1920
    Page Range: 44--50
    Publication Info: Rio de Janeiro,
  11. By: Bertin, Léon,
    Type: Article
    In: Annales de la Société entomologique de France
    Volume: 89
    Date: 1920
    Page Range: 79--88
    Publication Info: Paris, La Société,
  12. By: Benoist, R. (Raymond),
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 4
    Date: 1920
    Page Range: 351--357
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  13. By: Danguy, Paul Auguste,
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 3
    Date: 1920
    Page Range: 252--253
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  14. By: Poisson, Henri,
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 5
    Date: 1920
    Page Range: 436--440
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  15. By: Hustache, Alphonse
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Date: 1920
    Page Range: 630--637
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  16. By: Hustache, Alphonse
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 7
    Date: 1920
    Page Range: 630--637
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  17. By: Germain, Louis,
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 2
    Date: 1920
    Page Range: 160--165
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  18. By: Guillaumin, A
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 3
    Date: 1920
    Page Range: 254--261
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  19. By: Guillaumin, A
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 1
    Date: 1920
    Page Range: 77--84
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  20. By: Guillaumin, A
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 2
    Date: 1920
    Page Range: 174--179
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  21. By: Guillaumin, A
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 4
    Date: 1920
    Page Range: 361--368
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  22. By: Guillaumin, A
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 5
    Date: 1920
    Page Range: 434--435
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  23. By: Howell, A. Brazier (Alfred Brazier),
    Type: Article
    In: Journal of mammalogy
    Volume: 1
    Date: 1920
    Page Range: 111--117
    Publication Info: Baltimore, Md, American Society of Mammalogists,
  24. By: Ticehurst, Claud B. (Claud Buchanan),
    Type: Article
    In: Ibis
    Volume: 2
    Series: 11
    Issue: 2
    Date: 1920
    Page Range: 361--394
    Publication Info: [London], Published for the British Ornithologists' Union by Academic Press,
  25. By: Teale, E. O. (Edmund O.)
    Type: Article
    In: Proceedings of the Royal Society of Victoria
    Volume: 32
    Series: new
    Issue: 2
    Date: 1920
    Page Range: 67--146
    Publication Info: Melbourne, The Society, 1889-
  26. By: Hustache, Alphonse
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 6
    Date: 1920
    Page Range: 493--499
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  27. By: Germain, Louis,
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Date: 1920
    Page Range: 239--244
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  28. By: Germain, Louis,
    Type: Article
    In: Bulletin du Muséum national d'histoire naturelle
    Volume: 26
    Issue: 6
    Date: 1920
    Page Range: 527--533
    Publication Info: Paris, Imprimerie nationale, 1907-1971
  29. By: Collinge, Walter E. (Walter Edward),
    Type: Article
    In: Annals of the Natal Museum
    Volume: 4
    Date: 1920
    Page Range: 471--490
    Publication Info: London, Adlard & Son, 1910-
  30. By: Lyle, G T
    Type: Article
    In: The Entomologist
    Volume: 53
    Date: 1920
    Page Range: 99--103
    Publication Info: London, Simpkin, Marshall & Co, [1877-
  31. By: Barnard, K. H. (Keppel Harcourt),
    Type: Article
    In: Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum
    Volume: 17
    Date: 1920
    Page Range: 319--438
    Publication Info: Cape Town, South African Museum, 1898-2004
  32. By: Ewart, Alfred J. (Alfred James), - Tovey, James Richard
    Type: Article
    In: Proceedings of the Royal Society of Victoria
    Volume: 32
    Series: new
    Issue: 2
    Date: 1920
    Page Range: 189--209
    Publication Info: Melbourne, The Society, 1889-
  33. By: Herbert, D A
    Type: Article
    In: Journal of the Royal Society of Western Australia
    Volume: 6
    Date: 1920
    Page Range: 105--107
    Publication Info: Perth, The Society, 1915
  34. By: Hoepen, E. C. N. van (Egbert Cornelis Nicolaas)
    Type: Article
    In: Annals of the Transvaal Museum
    Volume: 7
    Date: 1920
    Page Range: 93--141
    Publication Info: Pretoria, Transvaal Museum, [1911]-2009
  35. By: Chapman, T. A. (Thomas Algernon),
    Type: Article
    In: Transactions of the Entomological Society of London
    Volume: 67
    Date: 1920
    Page Range: 450--465
    Publication Info: London, The Society,
  36. By: Tucker, R. W. E.
    Type: Article
    In: Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum
    Volume: 17
    Date: 1920
    Page Range: 439--488
    Publication Info: Cape Town, South African Museum, 1898-2004
  37. By: Laidlaw, Frank Fortescue
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1920
    Date: 1920
    Page Range: 311--342
    Publication Info: London Academic Press, [etc.] 1833-1965
  38. Type: Article
    In: Bollettino del Laboratorio di zoologia generale e agraria della R. Scuola superiore d'agricoltura in Portici
    Volume: 14
    Date: 1920
    Page Range: 219--250
    Publication Info: Portici, E. Della Torre, 1907-1927
  39. By: Enderlein, Günther,
    Type: Article
    In: Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere
    Volume: 43
    Date: 1920
    Page Range: 449--460
    Publication Info: Jena [Germany], G. Fischer,
  40. By: Boucomont, A. (Antoine),
    Type: Article
    In: Revue zoologique africaine
    Volume: 8
    Date: 1920
    Page Range: 261--269
    Publication Info: Bruxelles, Hayez, 1911-1928
  41. By: Bezzi, Mario,
    Type: Article
    In: Annals of the Entomological Society of America
    Volume: 13
    Date: 1920
    Page Range: 408--408
    Publication Info: [College Park, Md., etc.], Entomological Society of America,
  42. Type: Article
    In: Journal of the New York Entomological Society
    Volume: 28
    Date: 1920
    Page Range: 246--246
    Publication Info: Lawrence, Kan Allen Press [etc.]
  43. Type: Article
    In: The Auk
    Volume: 37
    Date: 1920
    Page Range: 352--352
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  44. By: Dyar, Harrison G. (Harrison Gray),
    Type: Article
    In: Insecutor inscitiae menstruus
    Volume: 8
    Date: 1920
    Page Range: 50
    Publication Info: Washington, D.C, [Harrison G. Dyar], 1913-1926
  45. By: Timberlake, P. H. (Philip Hunter),
    Type: Article
    In: The Canadian entomologist
    Volume: 52
    Date: 1920
    Page Range: 96--96
    Publication Info: Ottawa [etc.], Entomological Society of Canada [etc.],
  46. By: Murrill, William A.,
    Type: Article
    In: Mycologia
    Volume: 12
    Issue: 1
    Date: 1920
    Page Range: 6--24
    Publication Info: [Bronx, etc.], New York Botanical Garden,
  47. Type: Article
    In: Botanical gazette
    Volume: 69
    Issue: 4
    Date: 1920
    Page Range: 357--358
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991
  48. By: Cory, Charles B. (Charles Barney),
    Type: Article
    In: The Auk
    Volume: 37
    Date: 1920
    Page Range: 319--320
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  49. By: Calvert, Philip Powell,
    Type: Article
    In: Transactions of the American Entomological Society
    Volume: 46
    Date: 1920
    Page Range: 323--354
    Publication Info: Philadelphia, The Society at the Academy of Natural Sciences, 1890-
  50. Type: Article
    In: Journal and proceedings of the Royal Society of New South Wales
    Volume: 54
    Date: 1920
    Page Range: 25--36
    Publication Info: Sydney C. Potter, Acting. Govt. Printer 1877-
  51. By: Townsend, Charles Wendell,
    Type: Article
    In: The Auk
    Volume: 37
    Date: 1920
    Page Range: 380--393
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  52. Type: Article
    In: The Auk
    Volume: 37
    Date: 1920
    Page Range: 584--584
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  53. By: Alexander, Charles P. (Charles Paul),
    Type: Article
    In: Arkiv för zoologi
    Volume: 13
    Date: 1920
    Page Range: 1--32
    Publication Info: Stockholm, P.A. Norstedt & soner, 1903-1974
  54. By: Alexander, Charles P. (Charles Paul),
    Type: Article
    In: The Ohio journal of science
    Volume: 20
    Date: 1920
    Page Range: 193--203
    Publication Info: Columbus, Ohio, Ohio Academy of Science,
  55. By: Nelson, J C
    Type: Article
    In: Rhodora
    Volume: 22
    Date: 1920
    Page Range: 191--192
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]
  56. By: Cowles, Henry Chandler,
    Type: Article
    In: Botanical gazette
    Volume: 69
    Issue: 4
    Date: 1920
    Page Range: 356--356
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991
  57. By: Bergtold, W. H. (William Harry),
    Type: Article
    In: The Auk
    Volume: 37
    Date: 1920
    Page Range: 134--134
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  58. By: Wilson, Orville Turner,
    Type: Article
    In: Botanical gazette
    Volume: 70
    Issue: 1
    Date: 1920
    Page Range: 51--68
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991
  59. By: Jones, Fred Reuel, - Drechsler, Charles
    Type: Article
    In: Journal of Agricultural Research
    Volume: 20
    Issue: 4
    Date: 1920
    Page Range: 295-323 Plates 47-56
  60. By: Merrill, George P. (George Perkins),
    Type: Article
    In: Proceedings of the United States National Museum
    Volume: 57
    Issue: 2306
    Date: 1920
    Page Range: 97--105
    Publication Info: Washington Smithsonian Institution Press, [etc.]
  61. By: Hustache, Alphonse
    Type: Article
    In: Annales de la Société entomologique de France
    Volume: 89
    Date: 1920
    Page Range: 113--203
    Publication Info: Paris, La Société,
  62. Type: Article
    In: The Auk
    Volume: 37
    Date: 1920
    Page Range: 293--294
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  63. By: Gimlette, J D
    Type: Article
    In: Journal of the Straits Branch of the Royal Asiatic Society
    Volume: 82
    Date: 1920
    Page Range: 116--118
    Publication Info: Singapore,
  64. By: Joyeux, Charles,
    Type: Article
    In: Bulletin biologique de la France et de la Belgique. Supplément
    Volume: 2
    Date: 1920
    Page Range: 1-219
    Publication Info: Paris [etc.], Laboratoire d'evolution des êtres organises,
  65. By: Chamberlain, Charles Joseph,
    Type: Article
    In: Botanical gazette
    Volume: 69
    Issue: 2
    Date: 1920
    Page Range: 192--192
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991
  66. By: Benson, Margaret
    Type: Article
    In: Annals of botany
    Volume: 34
    Date: 1920-01
    Page Range: 135--137
    Publication Info: London, Academic Press [etc.],
  67. By: Cummins, R. H. LA B.
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 3
    Date: 1920-01-01
    Page Range: 237--237
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  68. By: Hosie, E.R.
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 3
    Date: 1920-01-01
    Page Range: 246--246
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  69. By: Thomson, Donald F.
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 3
    Date: 1920-01-01
    Page Range: 247--247
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  70. Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 3
    Date: 1920-01-01
    Page Range: 256--256
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  71. Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 3
    Date: 1920-01-01
    Page Range: 251--255
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  72. By: Collins, J. Franklin (James Franklin),
    Type: Correspondence
    In: James Franklin Collins materials related to Gaspé Peninsula plant collecting trips
    Date: 1920-01-30
  73. By: Carr, Gladys V.
    Type: Correspondence
    In: Walter Deane correspondence. Senders A-Z
    Date: 1920-01-31
  74. By: Latchford, F. R. (Francis Robert),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 34
    Issue: 2
    Date: 1920-02
    Page Range: 30--34
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  75. By: Rosenbaum, Joseph, - Sando, Charles E. (Charles Earl),
    Type: Article
    In: American journal of botany
    Volume: 7
    Issue: 2
    Date: 1920-02
    Page Range: 78--82
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-
  76. By: Shaffer, E L
    Type: Article
    In: The Biological bulletin
    Volume: 38
    Date: 1920-02-01
    Page Range: 83--103
    Publication Info: Woods Hole, Mass Marine Biological Laboratory
  77. By: Carr, Albert Bonus
    Type: Correspondence
    In: Walter Deane correspondence. Senders A-Z
    Date: 1920-02-06
  78. By: Chamberlain, Edward B. (Edward Blanchard),
    Type: Correspondence
    In: Edward Blanchard Chamberlain letters to James Franklin Collins
    Date: 1920-02-18
  79. By: Collins, J. Franklin (James Franklin),
    Type: Correspondence
    In: James Franklin Collins materials related to Gaspé Peninsula plant collecting trips
    Date: 1920-02-26
  80. Type: Article
    In: The Canadian field-naturalist
    Volume: 34
    Issue: 3
    Date: 1920-03
    Page Range: 60--60
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  81. By: Robbins, Harriet L - Child, Charles Manning,
    Type: Article
    In: The Biological bulletin
    Volume: 38
    Date: 1920-03-01
    Page Range: 103--122
    Publication Info: Woods Hole, Mass Marine Biological Laboratory
  82. By: Chamberlain, Edward B. (Edward Blanchard),
    Type: Correspondence
    In: Edward Blanchard Chamberlain letters to James Franklin Collins
    Date: 1920-03-07
  83. By: Lawson, Paul B
    Type: Article
    In: The Kansas University science bulletin
    Volume: 12
    Issue: 1
    Date: 1920-03-15
    Page Range: 5--306
    Publication Info: Lawrence, Kan, The University, 1902-1924
  84. By: Lawson, Paul B
    Type: Article
    In: The Kansas University science bulletin
    Volume: 12
    Issue: 2
    Date: 1920-03-15
    Page Range: 307--376
    Publication Info: Lawrence, Kan, The University, 1902-1924
  85. By: Chamberlain, Edward B. (Edward Blanchard),
    Type: Correspondence
    In: Edward Blanchard Chamberlain letters to James Franklin Collins
    Date: 1920-03-25
  86. By: Chamberlain, Edward B. (Edward Blanchard),
    Type: Correspondence
    In: Edward Blanchard Chamberlain letters to James Franklin Collins
    Date: 1920-03-29
  87. By: Latchford, F. R. (Francis Robert),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 34
    Issue: 4
    Date: 1920-04
    Page Range: 69--71
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  88. By: Barratt, Kate
    Type: Article
    In: Annals of botany
    Volume: 34
    Date: 1920-04
    Page Range: 201--235
    Publication Info: London, Academic Press [etc.],
  89. By: Littlejohns, Raymond Trewolla,
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 4
    Date: 1920-04-01
    Page Range: 312--312
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  90. By: Edwards, H. V.
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 4
    Date: 1920-04-01
    Page Range: 306--308
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  91. By: Chisholm, J. R.
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 4
    Date: 1920-04-01
    Page Range: 324--327
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  92. By: Alexander, Wilfrid Backhouse
    Type: Article
    In: The Emu : official organ of the Australasian Ornithologists' Union
    Volume: 19
    Issue: 4
    Date: 1920-04-01
    Page Range: 295--296
    Publication Info: Melbourne Royal Australasian Ornithologists Union 1901-
  93. By: Carr, Albert Bonus
    Type: Correspondence
    In: Walter Deane correspondence. Senders A-Z
    Date: 1920-04-04
  94. By: Collins, J. Franklin (James Franklin),
    Type: Correspondence
    In: James Franklin Collins materials related to Gaspé Peninsula plant collecting trips
    Date: 1920-04-07
  95. By: Chamberlain, Edward B. (Edward Blanchard),
    Type: Correspondence
    In: Edward Blanchard Chamberlain letters to James Franklin Collins
    Date: 1920-04-10
  96. By: Chamberlain, Edward B. (Edward Blanchard),
    Type: Correspondence
    In: Edward Blanchard Chamberlain letters to James Franklin Collins
    Date: 1920-04-17
  97. By: Collins, J. Franklin (James Franklin),
    Type: Correspondence
    In: James Franklin Collins materials related to Gaspé Peninsula plant collecting trips
    Date: 1920-04-23
  98. By: Christensen, Abby W.,
    Type: Correspondence
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  212. By: Kidson, Edward,
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  214. By: Horne, George
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  215. By: Notman, Howard, 1881-
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  216. By: Cossmann, M. (Maurice), - Peyrot, A
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  217. By: Vonwiller, Oscar Ulrich
    Type: Article
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    Volume: 55
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  218. By: Gerbault, M
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  219. By: Stirling, W G
    Type: Article
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    Volume: 83
    Date: 1921
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  220. By: Amaral, Afrânio do,
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  221. By: Schlechter, Rudolf, - Hoehne, F. C. (Frederico Carlos),
    Type: Article
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    Date: 1921
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  222. By: Angel, F. (Fernand),
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    Publication Info: Paris, Imprimerie nationale, 1907-1971
  227. By: Maheu, Jacques, - Gillet, Abel,
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  229. By: Hustache, Alphonse
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    Publication Info: Paris, Imprimerie nationale, 1907-1971
  230. Type: Article
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    Publication Info: Bruxelles, Hayez, 1911-1928
  231. By: Guillaumin, A
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  233. By: Austen, E. E. (Ernest Edward),
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  234. Type: Article
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  235. By: Chardón, Carlos E. (Carlos Eugenio),
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  236. By: Sullivan, Louis R. (Louis Robert),
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  237. By: Sonntag, Chas F
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  238. By: Bowley, Harry,
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  239. By: Sutton, J R
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  241. By: Fernald, Merritt Lyndon,
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  242. By: Fritsch, Felix Eugene, - Stephens, Edith Layard,
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  243. By: Ewart, Alfred J. (Alfred James),
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  244. By: Herbert, D A
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  247. By: Rogers, Richard Sanders - White, C. T. (Cyril Tenison),
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  248. By: Colosi, Giuseppe,
    Type: Article
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  249. By: Coppa, A
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  250. By: Wright, Quincy
    Type: Article
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