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  1. On British wild flowers considered in relation to insects.
    By: Lubbock, John,
    Edition: 2d ed.
    Publication info: London,Macmillan and Co.,1875.
    Contributed by: Cornell University Library
    Subjects: Color  Fertilization of plants by insects  Flowers  Plants  Variation  
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  2. De generis humani varietate nativa.
    By: Blumenbach, Johann Friedrich, - Banks, Joseph,
    Edition: Ed. 3. Praemissa est epistola ad ... Josephum Banks ...
    Publication info: Gottingae :Vandenhoek et Ruprecht,1795.
    Contributed by: West Virginia University Libraries (archive.org)
    Subjects: Anatomy  Anthropology  Genetic Variation  Human anatomy  Variation  Variation (Biology)  
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  3. Defective inheritance-ratios in Bursa hybrids. By Dr. George Harrison Shull ...
    By: Shull, George Harrison,
    Publication info: Brünn,1912
    Contributed by: University of California Libraries (archive.org)
    Subjects: Hybridization, Vegetable  Plants  Variation  
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  4. The different forms of flowers on plants of the same species /by Charles Darwin.
    By: Darwin, Charles,
    Publication info: New York : D. Appleton, [19--]
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
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  5. The different forms of flowers on plants of the same species / by Charles Darwin.
    By: Darwin, Charles,
    Publication info: New York :D. Appleton,1897.
    Contributed by: Kelly - University of Toronto (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
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  6. The different forms of flowers on plants of the same species, by Charles Darwin.
    By: Darwin, Charles,
    Publication info: New York,D. Appleton and company,1897.
    Contributed by: Boston College Libraries (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
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  7. The different forms of flowers on plants of the same species, by Charles Darwin.
    By: Darwin, Charles,
    Publication info: New York :D. Appleton and company,1899.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
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  8. The different forms of flowers on plants of the same species.
    By: Darwin, Charles,
    Publication info: New York,D. Appleton,1903.
    Contributed by: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
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  9. The different forms of flowers on plants of the same species.
    By: Darwin, Charles,
    Publication info: New York :D. Appleton,1893.
    Contributed by: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
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  10. The different forms of flowers on plants of the same species.
    By: Darwin, Charles,
    Publication info: London,J. Murray[1884]
    Contributed by: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
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  11. The different forms of flowers on plants of the same species.
    By: Darwin, Charles,
    Publication info: New York,D. Appleton,1896.
    Contributed by: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
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  12. The effects of cross and self fertilisation in the vegetable kingdom.
    By: Darwin, Charles,
    Edition: 2D ed.
    Publication info: LondonJ. Murray1916
    Contributed by: Earth Sciences - University of Toronto (archive.org)
    Subjects: Fertilization of plants  Plants  Variation  
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  13. The effects of cross and self fertilisation in the vegetable kingdom /
    By: Darwin, Charles,
    Publication info: New York :D. Appleton,1892.
    Contributed by: University of Connecticut Libraries (archive.org)
    Subjects: Fertilization of plants  Plants  Variation  
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  14. The effects of cross and self fertilisation in the vegetable kingdom / by Charles Darwin.
    By: Darwin, Charles,
    Edition: 2d. ed. 5th impression
    Publication info: London :J. Murray,1900.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Fertilization of plants  Plants  Variation  
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  15. Evolution of the colors of North American land birds / by Charles A. Keeler.
    By: Keeler, Charles Augustus,
    Publication info: San Francisco :California Academy of Sciences,1893.
    Contributed by: Smithsonian Libraries
    Subjects: Animals  Birds  California  Color  Heredity  Variation  
    BHL Collections: Smithsonian Institution Libraries
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  16. Evolution of the colors of North American land birds,
    By: Keeler, Charles Augustus, - Keeler, Charles Augustus, - Scheerman, J. G. - California Academy of Sciences.
    Publication info: San Francisco, California,Academy of Sciences,1893.
    Contributed by: Cornell University Library
    Subjects: 1893  Animals  Birds  California  Color  Heredity  Variation  
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  17. Evolution of the colors of North American Land Birds, by Charles A. Keeler.
    By: Keeler, Charles Augustus,
    Publication info: San Francisco,California academy of sciences,1893.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Animals  Birds  California  Color  Heredity  Variation  
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  18. Geographic variation among brown and grizzly bears (Ursus arctos) in North America / by E. Raymond Hall.
    By: Hall, E. Raymond - University of Kansas.
    Publication info: Lawrence :University of Kansas :1984.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Brown bear  Grizzly bear  Mammals  mcz  North America  Ursus arctos  Variation  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  19. Geographic variation in Bufo valliceps (Anura: Bufonidae), a widespread toad in the United States and Middle America / by Joseph R. Mendelson III.
    By: Mendelson, Joseph R. - University of Kansas.
    Publication info: Lawrence, Kan. :Natural History Museum, The University of Kansas,[1998]
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Bufonidae  Geographical distribution  Toads  Variation  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  20. Geographic variation in slash pine (Pinus elliottii Engelm.) / by Anthony E. Squillace.
    By: Squillace, Anthony E.,
    Publication info: 1964.
    Contributed by: University of Florida, George A. Smathers Libraries (archive.org)
    Subjects: Botany  Botany thesis Ph. D  Dissertations, Academic  Plants  Slash pine  UF  Variation  
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  21. Geographical variation in the canary, Serinus sulphuratus [by] Austin L. Rand.
    By: Rand, Austin Loomer,
    Publication info: [Chicago]Field Museum of Natural History,1968.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Africa  Birds  Serinus sulphuratus  Variation  
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  22. Gruppenweise Artbildung unter spezieller Berücksichtigung der Gattung Oenothera.
    By: Vries, Hugo de,
    Publication info: BerlinGebr. Borntraeger1913
    Contributed by: Gerstein - University of Toronto (archive.org)
    Subjects: Oenothera  Plants  Variation  
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  23. Illustrirtes Mustertauben-Buch : enthaltend das Gesammte der Taubenzucht /
    By: Prütz, Gustav. - Förster, Christian. - Hanson, Letitia Armistead,
    Publication info: Hamburg :Druck und Verlag von J.F. Richter,[1884-1886]
    Contributed by: Smithsonian Libraries
    Subjects: Anatomy  Pictorial works  Pigeons  Variation  
    BHL Collections: Smithsonian Institution Libraries
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  24. Intraspecific and interspecific variation in the Cryptotis nigrescens species complex of small-eared shrews (Insectivora, Soricidae) : with the description of a new species from Colombia / Neal Woodman, Robert M. Timm.
    By: Woodman, Neal. - Timm, Robert M. - Field Museum of Natural History.
    Publication info: [Chicago, Ill.] :Field Museum of Natural History,c1993.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Classification  Cryptotis  Variation  
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  25. Is species a natural or artificial division in nature? a paper read before the Biological Section of the Hamilton Association, December 7th, 1888 /
    By: Moffat, J. Alston. - Hamilton Association.
    Publication info: Hamilton, Ont.? :s.n.,1888?
    Contributed by: Canadiana.org (archive.org)
    Subjects: Species  Variation  Zoology  
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  26. Kangaroo rats : intraspecific variation in Dipodomys spectabilis Merriam and Dipodomys deserti Stephens /
    By: Nader, Iyad A.,
    Publication info: Urbana :University of Illinois Press,c1978.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Desert kangaroo rat  Dipodomys spectabilis  Variation  Zoology  
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  27. Miscellaneous studies in agriculture and biology.
    By: University of California (1868-1952) - Bioletti, Frederic T. - Cruess, W. V. - Davi, Horace Denan, - Frost, Howard Brett, - McEwen, George Francis. - Swain, Albert Free,
    Publication info: Berkeley,University of California Press,1919.
    Contributed by: Library of Congress
    Subjects: Aphids  Grapes  Matthiola  Ocean temperature  Plants  Variation  
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  28. Mutants and hybrids of the oenotheras. By D. T. Macdougal, assisted by A. M. Vail, G. H. Shull and J. K. Small.
    By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Small, John Kunkel, - Vail, Anna Murray.
    Publication info: Washington, D.C.,The Carnegie Institution,1905.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Hybridization, Vegetable  Oenothera  Plants  Variation  
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  29. Mutants and hybrids of the oenotheras. By D. T. Macdougal, assisted by A. M. Vail, G. H. Shull and J. K. Small.
    By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Small, John Kunkel, - Vail, Anna Murray.
    Publication info: Washington, D.C.,Carnegie Institution,1905.
    Contributed by: NCSU Libraries (archive.org)
    Subjects: Oenothera  Plant hybridization  Plants  Variation  
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  30. Mutation in Matthiola,
    By: Frost, Howard Brett,
    Publication info: Berkeley,University of California press,1919.
    Contributed by: University of California, Davis Libraries (archive.org)
    Subjects: Matthiola  Plants  Variation  
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  31. The mutation theory; experiments and observations on the origin of species in the vegetable kingdom, by Hugo de Vries ... tr. by Prof. J. B. Farmer and A. D. Darbishire ...
    By: Vries, Hugo de, - Darbishire, A. D. - Farmer, J. B.
    Publication info: Chicago,Open Court Publishing Company; [etc., etc.]1909-10.
    Contributed by: MBLWHOI Library, Woods Hole
    Subjects: Evolution  Evolution (Biology)  Hybridization, Vegetable  Plants  Variation  
    BHL Collections: MBLWHOI Library, Woods Hole
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  32. The mutation theory; experiments and observations on the origin of species in the vegetable kingdom, by Hugo de Vries. Tr. by J. B. Farmer and A. D. Darbishire.
    By: Vries, Hugo de, - Darbishire, A. D. - Farmer, J. B.
    Publication info: Chicago,Open Court Pub. Co.,1909-10.
    Contributed by: NCSU Libraries (archive.org)
    Subjects: Evolution  Plant hybridization  Plants  Variation  
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  33. Mutations, variations, and relationships of the oenotheras,
    By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Vall, Anna Murray
    Publication info: Washington, D.C.Carnegie Institution of Washington1907
    Contributed by: Gerstein - University of Toronto (archive.org)
    Subjects: Oenothera  Plants  Variation  
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  34. Mutations, variations, and relationships of the oenotheras, by D.T. MacDougal, A. M. Vail, and G. H. Shull.
    By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Vail, Anna Murray.
    Publication info: Washington, D.C.,Carnegie Institution of Washington,1907.
    Contributed by: NCSU Libraries (archive.org)
    Subjects: Oenothera  Plants  Variation  
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  35. Die mutationstheorie. Versuche und beobachtungen über die entstehung von arten im pflanzenreich, von Hugo de Vries.
    By: Vries, Hugo de,
    Publication info: Leipzig,Veit & comp.,1901-03.
    Contributed by: MBLWHOI Library, Woods Hole
    Subjects: Evolution  Evolution (Biology)  Hybridization, Vegetable  Plants  Variation  
    BHL Collections: MBLWHOI Library, Woods Hole
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  36. On British wild flowers considered in relation to insects / by Lord Avebury.
    By: Lubbock, John,
    Publication info: London :Macmillan,1909.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Color  Fertilization of plants by insects  Flowers  Plants  Variation  
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  37. The origin of floral structures : through insect and other agencies.
    By: Henslow, George,
    Publication info: New York :Appleton,1888.
    Contributed by: Cornell University Library
    Subjects: Fertilization  Flowers  Morphology  Plants  Variation  
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  38. Phases of animal life, past and present, by R. Lydekker
    By: Lydekker, Richard,
    Publication info: and New York,Longmans, Green, and Co.,1892
    Contributed by: University of California Libraries (archive.org)
    Subjects: Animals  Paleontology  Variation  
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  39. Recent progress in the study of variation, heredity, and evolution, rev. by Leonard Doncaster, biographical note by Bella Sidney Woolf (Mrs. R.H. Lock)
    By: Lock, Robert Heath,
    Publication info: London,Murray,1920.
    Contributed by: Gerstein - University of Toronto (archive.org)
    Subjects: Evolution  Heredity  Variation  
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  40. Selection and cross-breeding in relation to the inheritance of coat-pigments and coat-patterns in rats and guinea-pigs,
    By: MacCurdy, Hansford. - Castle, William E.
    Publication info: Washington, D. C.,Carnegie institution of Washington,1907.
    Contributed by: Cornell University Library
    Subjects: Guinea pigs  Rats  Variation  
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  41. Species and varieties : their origin by mutation / lectures delivered at the University of California by Hugo DeVries ; edited by Daniel Trembly MacDougal.
    By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2nd ed., corr. and rev.
    Publication info: Chicago :The Open Court ;1906, c1904.
    Contributed by: MBLWHOI Library, Woods Hole
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation  
    BHL Collections: MBLWHOI Library, Woods Hole
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  42. Species and varieties, their origin by mutation; lectures delivered at the University of California
    By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2d ed., corr. and rev.
    Publication info: Chicago,The Open Court Publishing Company; [etc., etc.]1906.
    Contributed by: Cornell University Library
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation  
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  43. Species and varieties, their origin by mutation; lectures delivered at the University of California by Hugo De Vries Edited by Daniel Trembly MacDougal.
    By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Publication info: ChicagoOpen Court Pub. Co.1905
    Contributed by: Gerstein - University of Toronto (archive.org)
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation  
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  44. Species and varieties; their origin by mutation. Lectures delivered at the University of California by Hugo De Vries. Edited by Daniel Trembly MacDougal.
    By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2d ed., corrected and rev.
    Publication info: Chicago,K. Paul, Trench, Truber,1906 [c1904]
    Contributed by: NCSU Libraries (archive.org)
    Subjects: Evolution  Plant hybridization  Plants  Variation  
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  45. ... Studies of variation in insects. By Vernon L. Kellogg and Ruby G. Bell...
    By: Kellogg, Vernon Lyman, - Smith, Ruby Green Bell,
    Publication info: Washington, D. C.,The Academy,1904.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Animals  Insects  Variation  
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  46. The survival of the unlike; a collection of evolution essays suggested by the study of domestic plants.
    By: Bailey, L. H.
    Edition: 5th ed.
    Publication info: New YorkMacmillan1906
    Contributed by: Gerstein - University of Toronto (archive.org)
    Subjects: Evolution  Plants  Plants, Cultivated  Variation  
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  47. Variability and significance of parietal and ventral scales in the marine snakes of the genus Lapemis (Serpentes, Hydrophiidae), with comments on the occurance of spiny scales in the genus / Paul Gritis, Harold K. Voris.
    By: Gritis, Paul A. - Voris, Harold K.
    Publication info: [Chicago] :Field Museum of Natural History,1990.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Hydrophidae  Lapemis  Variation  
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  48. Variability of mammals = Izmenchivost' mlekopitayushchikh / A. V. Yablokov ; rev. by the author for this ed. ; scientific editor of translation, L. Van Valen.
    By: IAblokov, A. V. - National Science Foundation (U.S.) - Smithsonian Institution
    Publication info: New Delhi :available from the U. S. Dept of Commerce, National Technical Information Service,1974.
    Contributed by: Smithsonian Libraries
    Subjects: Anatomy  Mammals  Morphology (Animals)  Variation  Variation (Biology)  
    BHL Collections: Smithsonian Institution Libraries
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  49. Variation in clutch and litter size in New World reptiles / by Henry S. Fitch.
    By: Fitch, Henry S.
    Publication info: Lawrence :University of Kansas,1985.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Reproduction  Reptiles  United States  Variation  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  50. Variation in Myiozetetes luteiventris.
    By: Blake, Emmet Reid,
    Publication info: Chicago,Chicago Natural History Museum,1961.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Myiozetetes luteiventris  Variation  Zoology  
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  51. Variation in the quail-dove Geotrygon frenata [by] Emmet R. Blake, Gunnar Hoy [and] Francisco Contino.
    By: Blake, Emmet Reid,
    Publication info: [Chicago]Chicago Natural History Museum,1961.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Ecology  Geotrygon frenata  Variation  
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  52. The variation of animals in nature, by G.C. Robson ... and O.W. Richards ... with 2 coloured plates and 30 illustrations in the text.
    By: Robson, G. C. - Richards, Owain Westmacott,
    Publication info: London,Longmans, Green and co.[1936]
    Contributed by: MBLWHOI Library, Woods Hole
    Subjects: Evolution  Natural selection  Variation  Zoology  
    BHL Collections: MBLWHOI Library, Woods Hole
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  53. Variations and genetic relationships of the garter-snakes, by Alexander G. Ruthven.
    By: Ruthven, Alexander Grant,
    Publication info: Washington,Govt. print. off.,1908.
    Contributed by: Smithsonian Libraries
    Subjects: Animals  Garter snakes  Variation  
    BHL Collections: Smithsonian Institution Libraries
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