Proceedings of the Chester Society of Natural Science - Chester Society of Natural Science. (1874)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1919)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1932)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1969)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1986)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1990)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 2000)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 2002)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 2006)

Proceedings of the International Ornithological Congress (Australian Academy of Science [etc.], 1960)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1913)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1916)

Proceedings of the Linnean Society of London - Linnean Society of London. (Published for the Linnean Society of London by Academic Press [etc.], 1848)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1960)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1963)

Proceedings of the Pacific Coast Entomological Society - Pacific Coast Entomological Society ([The Society], 1901)

Proceedings of the Royal Horticultural Society London (Royal Horticultural Society, 1862)

Proceedings of the Royal Horticultural Society London (Royal Horticultural Society, 1866)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1889)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1913)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1920)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1921)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1926)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1929)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1943)

Proceedings of the Zoological and Acclimatisation Society of Victoria, and report of the annual meeting of the society - Zoological; Acclimatisation Society of Victoria. (F. A. Masterman, 1872)

Procès-verbaux - Société Linnéenne de Bordeaux. (1933)

Procès-verbaux - Société Linnéenne de Bordeaux. (1947)

Programmatic environmental impact statement vegetation treatments using herbicides on Bureau of Land Management lands in 17 western states : draft - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, 2005)

Programmatic environmental impact statement vegetation treatments using herbicides on Bureau of Land Management lands in 17 western states : final - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, 2007)

Le propriétaire-planteur; semer et planter traité pratique et économique des reboisements et des plantations des parcs et jardins - Cannon, David (L. Laveur, 1906)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1888)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1891)

Publication / the Herbarium, Department of Biological Sciences, University of California, Santa Barbara - University of California, Santa Barbara. (the Herbarium, 1984)

The Quarterly journal of science (J. Churchill and Sons, etc, 1871)

The Queensland Naturalist - Queensland Naturalists' Club. (Queensland Naturalists' Club], 1936)

Rambles on the Riviera - Strasburger, Eduard, 1844 -1912 (C. Scribner's Sons, 1906)

Rare plants : our complete catalog of rare plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rare Plant Club, 1954)

Rare plants : our complete catalog of rare plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rare Plant Club, 1953)

Rare plants : our complete catalog of rare plants : spring 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rare Plant Club, 1956)

Reading Naturalist. Reading - Reading Natural History Society.

Records of the Auckland Institute and Museum - Auckland Institute; Museum. (Auckland Institute and Museum, 1981)

Reliable seeds : 1905 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Johnson & Musser Seed Co, 1905)

Reliable seeds : 1906 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Johnson & Musser Seed Co, 1906)

Repertorium specierum novarum regni vegetabilis (Selbstverlag des Herausgebers, 1914)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1928)

Report of the Board of Commissioners of Agriculture and Forestry of the Territory of Hawaii for the period ... - Hawaii. Board of Commissioners of Agriculture; Forestry. (1906)

Report of the Director to the Board of Trustees for the year ... - Chicago Natural History Museum. (The Museum, 1956)

Report of the Government Botanist for the year ending 30th June 1874 - Mueller, Ferdinand von, 1825 -1896 (Govt. Printer, 1874)

Report of the State Entomologist of Connecticut for the year - Connecticut Agricultural Experiment Station. (1901)

Report on the agricultural resources and capabilities of Hawaii - Stubbs, William Carter, 1846 -1924 (Govt. Print. off, 1901)

Report on the forest conditions of the Rocky Mountains, and other papers; with a map showing the location of forest areas on the Rocky Mountain range - United States. Department of Agriculture. (Govt. Print. Off, 1889)

Report on the forest resources of Western Australia - Mueller, Ferdinand von, 1825 -1896 (Reeve, 1879)

Report on the forests of British East Africa - Hutchins, D. E. (David Ernest), 1850 -1920 (Printed for His Majesty's Stationery Off. by Darling, 1909)

Report on the forests of North America, exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Govt. Print. Off, 1884)

Report on the forests of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (G.P.O, 1884)

Report on the forests of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (Govt. print. off, 1884)

Report on the Natal forests - Fourcade, Henry George, 1865 -1948 (s.n.], 1889)

Report on the United States and Mexican boundary survey :made under the direction of the secretary of the Interior - Emory, William H. 1811 -1887 (C. Wendell, printer, 1859)

Reports of the Survey. Botanical series - Geological; Natural History Survey of Minnesota. (1892)

La reproducción forestal - Chile. Ministerio de Industria y Obras Públicas. Sección de Aguas i Bosques. (Imprenta moderna, 1906)

The resources of California: comprising agriculture, mining, geography, climate, commerce, &c., and the past and future development of the State - Hittell, John S. (John Shertzer), 1825 -1901 (A. Roman, 1866)

The resources of California : comprising agriculture, mining, geography, climate, commerce, &c., and the past and future development of the state - Hittell, John S. (John Shertzer), 1825 -1901 (A. Roman, 1863)

The resources of California: comprising agriculture, mining, geography, climate, &c., and the past and future development of the state - Hittell, John Shertzer, 1825 -1901 (A. Roman and company, 1869)

The resources of California, comprising the society, climate, salubrity, scenery, commerce and industry of the state - Hittell, John S. (John Shertzer), 1825 -1901 (A. Roman & company, 1874)

Retail list and wholesale list : shrubs, trees, vines, ferns, 1939-1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1939)

Retail list : shrubs and trees, vines and perennials, 1938-1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1938)

Retail list : shrubs, trees, vines, perennials, 1937-1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1937)

Retail price list, 1937 : shrubs, trees, vines, palms, ferns, bedding plants, flowering plants and garden supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Edward H. Rust, 1937)

Retail price list, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roy F. Wilcox & Co, 1939)

Retail price list, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roy F. Wilcox & Co, 1940)

Retail price list, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roy F. Wilcox & Co, 1941)

Retail price list for 1927-28 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Franklin Nurseries, 1927)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1914)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1917)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1918)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1919)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1920)

Review of Forest service investigations... - United States. Forest Service. (Govt. print. off, 1913)

A revision of the North American species of buprestid beetles belonging to the tribe Chrysobothrini - Fisher, Warren Samuel, 1878 -1971 (U.S. Dept. of Agriculture, 1942)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1973)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1907)

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2000)

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2001)

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2002)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1953)

Revue des questions scientifiques - Société scientifique de Bruxelles. (Société scientifique de Bruxelles, 1900)

Revue des sciences naturelles appliquées - Société nationale d'acclimatation de France (La Société, 1889)

Revue des sciences naturelles appliquées - Société nationale d'acclimatation de France (La Société, 1891)

Revue horticole (Librairie agricole de la maison rustique, 1850)

Revue horticole (Librairie agricole de la maison rustique, 1854)

Revue horticole (Librairie agricole de la maison rustique, 1855)

Revue horticole (Librairie agricole de la maison rustique, 1856)

Revue horticole (Librairie agricole de la maison rustique, 1863)

Revue horticole (Librairie agricole de la maison rustique, 1867)

Revue horticole (Librairie agricole de la maison rustique, 1876)

Revue horticole (Librairie agricole de la maison rustique, 1882)

Revue horticole (Librairie agricole de la maison rustique, 1891)

Revue horticole (Librairie agricole de la maison rustique, 1892)

Revue horticole (Librairie agricole de la maison rustique, 1894)

Revue horticole (Librairie agricole de la maison rustique, 1896)

Revue horticole (Librairie agricole de la maison rustique, 1901)

Revue horticole (Librairie agricole de la maison rustique, 1912)

Revue horticole (Librairie agricole de la maison rustique, 1916)

Revue horticole (Librairie agricole de la maison rustique, 1920)

Rhododendron Society Notes - Rhododendron Society(UK) (1916)

Rhododendrons, azaleas & other choice hardy ornamental trees & shrubs, autumn 1922 spring 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (John Waterer, Sons & Crisp, Limited, 1922)

Robert C. Young [price list]. Bulletin No. 4, March 21, 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert C. Young, 1927)

Robert C. Young [price list]. Bulletin No. 3, January 15, 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert C. Young, 1927)

Robert C. Young [price list]. Bulletin No. 1, October 1st, 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert C. Young, 1926)

Roses, ornamental trees and shrubs, fruit trees, berry vines, perennial plants, garden requisites, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sunset Nursery Co., Incorporated, 1941)

Roses, ornamental trees and shrubs, fruit trees, berry vines, perennial plants, garden requisites, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Sunset Nursery Co., Incorporated, 1942)

Roses, ornamental trees, shrubs and plants, vines, palms and fruits - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robertson Nurseries, 1927)

Roses, ornamental trees, shrubs and plants, vines, palms and ferns - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robertson Nurseries, 1926)

Rough notes on the Birds observed during twenty-five years shooting and collecting in the British Islands - Booth, Edward Thomas, 1840 -1890 (1881)

Round the year in the garden; a descriptive guide to the flowers of the four seasons, and to the work of each month in the flower, friut and kitchen garden - Thomas, H. H. (Harry Higgott) (Funk and Wagnalls company, 1916)

Round the year in the garden; a descriptive guide to the flowers of the four seasons, and to the work of each month in the flower, fruit and kitchen garden - Thomas, H. H. (Harry Higgott) (Cassell, 1916)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1861)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1870)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1878)

Rustic adornments for homes of taste - Hibberd, Shirley, 1825 -1890 (W.H. and L. Collingridge, 1895)

San Fernando Nursery Co. 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (San Fernando Nursery Company, 1929)

San Francisco Zoological Gardens master plan : draft environmental impact report - San Francisco (Calif.). Planning Dept. (Planning Dept, 1997)

San Francisco Zoological Gardens master plan : final environmental impact report - San Francisco (Calif.). Planning Dept. (Planning Dept, 1998)

The Scale - Systematic Entomology Laboratory (U.S.) (Systematic Entomology Lab, 1983)

Scale insects of the Santa Cruz peninsula - Ferris, Gordon Floyd, 1893 -1958 (The University, 1920)

Schedule of prizes offered by the Massachusetts Horticultural Society - Massachusetts Horticultural Society (The Society, 1867)

Schlich's manual of forestry - Schlich, William, Sir, 1840 -1925 (Bradbury, Agnew, 1922)

Science - American Association for the Advancement of Science. ([s.n.], 1885)

Science - American Association for the Advancement of Science. ([s.n.], 1905)