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  1. By: Lubbock, John, Sir,
    Edition: 2d ed.
    Publication info: London,Macmillan and Co.,1875.
    Holding Institution: Cornell University Library
    Subjects: Color  Fertilization of plants by insects  Flowers  Plants  Variation  
  2. By: Honeycutt, Rodney L. - Schmidly, David J.,
    Publication info: [Lubbock] :Museum, Texas Tech University,1979.
    Holding Institution: Museum of Texas Tech University
    Subjects: Genetics  Geomys bursarius  Mammals  Texas  Variation  West (U.S.)  
    BHL Collections: Expanding Access to Biodiversity Literature
  3. By: Meehan, Thomas,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (1827-1901)  (Aubrey Henry)  (Charles Eastwick)  (George Washington),  (Joseph Hinson),  (Thomas Conrad),  (William St. Julian)  1786-1859  1799-1865  1800-1889  1806-1893  1809-1884  1810-1888  1811-1875  1812-1878  1813-1887  1814-1875  1815-1891  1815-1895  1816-1893  1817-1893  1820-1883  1820-1900  1822-1901  1824-1909  1826-1901  1829-1903  1832-1904  1838-1888  1839-1922  1840-1913  Bark  Beecher, Henry Ward,  Breeding  Burk, Issac,  Candolle, Alphonse de,  Correspondence  Ecology  Embryos  Engelmann, George,  Fertilization of plants  Gramineae  Gray, Asa,  Growth  Growth (Plants)  Hoopes, Josiah,  Lapham, Increase Allen,  Letterman, George W  Letters  Lindley, John,  Mazyck, W. St. J  Meehan, Thomas,  Mellichamp, J. H  Murray, Andrew,  Nuttall, Thomas,  Parker, Charles F  Pinaceae  Pinus  Plants  Plants, Flowering of  Porter, Thomas C  Prang, Louis,  Redfield, John Howard,  Rothrock, Joseph T.,  Schott, Arthur,  Shaw, Henry,  Smith, Aubrey H  Smith, Charles E  Spruce, Richard,  Trees  Tryon, George W  Variation  Wood  
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  4. Publication info: London,Groombridge and sons[1871]
    Holding Institution: Multiple institutions
    Subjects: 1871  Color  Entomologi  Entomology  Gold blocked bindings  Great Britain  Insects  Insekter  Life cycles  Specimens  Variation  Wood engravings  Zoology  
  5. By: Blumenbach, Johann Friedrich, - Banks, Joseph, Sir,
    Edition: Ed. 3. Praemissa est epistola ad ... Josephum Banks ...
    Publication info: Gottingae :Vandenhoek et Ruprecht,1795.
    Holding Institution: West Virginia University Libraries (archive.org)
    Subjects: Anatomy  Anthropology  Genetic Variation  Human anatomy  Variation  Variation (Biology)  
  6. By: Shull, George Harrison,
    Publication info: Brünn,1912
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Hybridization, Vegetable  Plants  Variation  
  7. By: Darwin, Charles,
    Publication info: New York : D. Appleton, [19--]
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  8. By: Darwin, Charles,
    Edition: 2nd ed.
    Publication info: London :J. Murray,1880.
    Holding Institution: Tisch Library (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  9. By: Darwin, Charles,
    Publication info: New York :D. Appleton,1897.
    Holding Institution: University of Toronto - St. Michael’s College (John M. Kelly Library)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  10. By: Darwin, Charles,
    Publication info: New York :D. Appleton and company,1899.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  11. By: Darwin, Charles,
    Publication info: New York,D. Appleton and company,1897.
    Holding Institution: Boston College Libraries (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  12. By: Darwin, Charles,
    Publication info: New York :D. Appleton,1893.
    Holding Institution: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
  13. By: Darwin, Charles,
    Edition: First English edition,1877.
    Publication info: London,John Murray,1892.
    Holding Institution: Wellesley College Library (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  14. By: Darwin, Charles,
    Publication info: New York,D. Appleton,1903.
    Holding Institution: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
  15. By: Darwin, Charles,
    Publication info: London,J. Murray[1884]
    Holding Institution: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
  16. By: Darwin, Charles,
    Publication info: New York,D. Appleton,1896.
    Holding Institution: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
  17. By: Darwin, Charles,
    Edition: 2D ed.
    Publication info: LondonJ. Murray1916
    Holding Institution: University of Toronto - Earth Sciences Library (Noranda)
    Subjects: Fertilization of plants  Plants  Variation  
  18. By: Darwin, Charles,
    Publication info: New York :D. Appleton,1892.
    Holding Institution: University of Connecticut Libraries (archive.org)
    Subjects: Fertilization of plants  Plants  Variation  
  19. By: Darwin, Charles, - Bradbury, Agnew and Co., - John Murray (Firm), - William Clowes and Sons,
    Edition: Second edition.
    Publication info: London :John Murray, Albemarle Street.,1878.
    Holding Institution: Tisch Library (archive.org)
    Subjects: Fertilization of plants  Plants  Pollination  Variation  
  20. By: Darwin, Charles,
    Edition: 2d. ed. 5th impression
    Publication info: London :J. Murray,1900.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Fertilization of plants  Plants  Variation  
  21. By: Keeler, Charles Augustus,
    Publication info: San Francisco :California Academy of Sciences,1893.
    Holding Institution: Smithsonian Libraries
    Subjects: Animals  Birds  California  Color  Heredity  Variation  
  22. By: Keeler, Charles Augustus, - Scheerman, J. G. - California Academy of Sciences.
    Publication info: San Francisco, California,Academy of Sciences,1893.
    Holding Institution: Cornell University Library
    Subjects: 1893  Animals  Birds  California  Color  Heredity  Variation  
  23. By: Keeler, Charles Augustus,
    Publication info: San Francisco,California academy of sciences,1893.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Animals  Birds  California  Color  Heredity  Variation  
  24. By: Hall, E. Raymond (Eugene Raymond), - University of Kansas. Museum of Natural History.
    Publication info: Lawrence :University of Kansas :1984.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Brown bear  Grizzly bear  Mammals  mcz  North America  Ursus arctos  Variation  
  25. By: Mendelson, Joseph R. - Missouri. Dept. of Conservation.
    Publication info: Lawrence, Kan. :Natural History Museum, The University of Kansas,[1998]
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Bufonidae  Geographical distribution  Toads  Variation  
  26. By: Squillace, Anthony E.,
    Publication info: 1964.
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Botany  Botany thesis Ph. D  Dissertations, Academic  Plants  Slash pine  UF  Variation  
  27. By: Rand, Austin Loomer,
    Publication info: [Chicago]Field Museum of Natural History,1968.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Africa  Birds  Serinus sulphuratus  Variation  
  28. By: Vries, Hugo de,
    Publication info: BerlinGebr. Borntraeger1913
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Oenothera  Plants  Variation  
  29. By: Prütz, Gustav. - Förster, Christian.
    Publication info: Hamburg :Druck und Verlag von J.F. Richter,[1884-1886]
    Holding Institution: Smithsonian Libraries
    Subjects: Anatomy  Pictorial works  Pigeons  Variation  
  30. By: Ludlow, Joseph Williamson, - Simpson, William,
    Edition: Rev.
    Publication info: New York :Published by National Columbarian Society, H.V. Crawford, Sec. 120 Hudson St.,1879.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases  Exhibitions  Judging  Pigeons  Standards  Variation  
  31. By: Woodman, Neal. - Timm, Robert M. - Field Museum of Natural History.
    Publication info: [Chicago, Ill.] :Field Museum of Natural History,c1993.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Classification  Cryptotis  Variation  
  32. By: Gmelin, Johann Georg, - Camerarius, Rudolf Jakob, - Literis Erhardtianis,
    Publication info: Tubingae :Literis Erhardtianis,[1749]
    Holding Institution: Harvard University Botany Libraries
    Subjects: Botany  Early works to 1800  Plants  Plants, Sex in  Pre-Linnean works  Variation  
    BHL Collections: Harvard University Herbarium, Botany Libraries
  33. By: Moffat, J. Alston. - Hamilton Association. Biological Section.
    Publication info: Hamilton, Ont.? :s.n.,1888?
    Holding Institution: Canadiana.org (archive.org)
    Subjects: Species  Variation  Zoology  
  34. By: Nader, Iyad A.,
    Publication info: Urbana :University of Illinois Press,c1978.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Desert kangaroo rat  Dipodomys spectabilis  Variation  Zoology  
  35. 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.
    Holding Institution: Library of Congress
    Subjects: Aphids  Grapes  Matthiola  Ocean temperature  Plants  Variation  
  36. By: Cole, Charles J. - Taylor, Harry Leonard. - Townsend, Carol R.
    Publication info: 2016-02-04
    Holding Institution: American Museum of Natural History Library
    Subjects: Aspidoscelis  Chihuahuan spotted whiptail  Hybridization  Little striped whiptail  Lizards  Morphology  Parthenogenesis in animals  Teiidae  Variation  
  37. By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Small, John Kunkel, - Vail, Anna Murray.
    Publication info: Washington, D.C.,The Carnegie Institution,1905.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Hybridization, Vegetable  Oenothera  Plants  Variation  
  38. By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Small, John Kunkel, - Vail, Anna Murray.
    Publication info: Washington, D.C.,Carnegie Institution,1905.
    Holding Institution: NCSU Libraries (archive.org)
    Subjects: Oenothera  Plant hybridization  Plants  Variation  
  39. By: Frost, Howard Brett,
    Publication info: Berkeley,University of California press,1919.
    Holding Institution: University of California, Davis Libraries (archive.org)
    Subjects: Matthiola  Plants  Variation  
  40. By: Vries, Hugo de, - Darbishire, A. D. (Arthur Dukinfield), - Farmer, J. B. (John Bretland),
    Publication info: Chicago,Open Court Publishing Company; [etc., etc.]1909-10.
    Holding Institution: MBLWHOI Library
    Subjects: Evolution  Evolution (Biology)  Hybridization, Vegetable  Plants  Variation  
  41. By: Vries, Hugo de, - Darbishire, A. D. (Arthur Dukinfield), - Farmer, J. B. (John Bretland),
    Publication info: Chicago,Open Court Pub. Co.,1909-10.
    Holding Institution: NCSU Libraries (archive.org)
    Subjects: Evolution  Plant hybridization  Plants  Variation  
  42. By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Vall, Anna Murray
    Publication info: Washington, D.C.Carnegie Institution of Washington1907
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Oenothera  Plants  Variation  
  43. By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Vail, Anna Murray.
    Publication info: Washington, D.C.,Carnegie Institution of Washington,1907.
    Holding Institution: NCSU Libraries (archive.org)
    Subjects: Oenothera  Plants  Variation  
  44. By: Vries, Hugo de,
    Publication info: Leipzig,Veit & comp.,1901-03.
    Holding Institution: Multiple institutions
    Subjects: Evolution  Evolution (Biology)  Hybridization, Vegetable  Plants  Variation  
  45. By: Lubbock, John, Sir,
    Publication info: London :Macmillan,1909.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Color  Fertilization of plants by insects  Flowers  Plants  Variation  
  46. By: Henslow, George,
    Publication info: New York :Appleton,1888.
    Holding Institution: Cornell University Library
    Subjects: Fertilization  Flowers  Morphology  Plants  Variation  
  47. By: Lydekker, Richard,
    Publication info: and New York,Longmans, Green, and Co.,1892
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Animals  Paleontology  Variation  
  48. By: Lock, Robert Heath,
    Publication info: London,Murray,1920.
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Evolution  Heredity  Variation  
  49. By: Campbell, Robert Kenneth, - Sugano, Albert I. - Pacific Northwest Research Station (Portland, Or.)
    Publication info: [Portland, Or.] :U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station,[1987]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Oregon  Plants  Sugar pine  Variation  
  50. By: MacCurdy, Hansford. - Castle, William E. (William Ernest),
    Publication info: Washington, D. C.,Carnegie institution of Washington,1907.
    Holding Institution: Cornell University Library
    Subjects: Guinea pigs  Rats  Variation  
  51. By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2nd ed., corr. and rev.
    Publication info: Chicago :The Open Court ;1906, c1904.
    Holding Institution: MBLWHOI Library
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation  
  52. By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2d ed., corr. and rev.
    Publication info: Chicago,The Open Court Publishing Company; [etc., etc.]1906.
    Holding Institution: Cornell University Library
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation  
  53. By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Publication info: ChicagoOpen Court Pub. Co.1905
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation  
  54. By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2d ed., corrected and rev.
    Publication info: Chicago,K. Paul, Trench, Truber,1906 [c1904]
    Holding Institution: Multiple institutions
    Subjects: Biological Evolution  Electronic books  Evolution  Genetic Variation  Hybridization  Mutation  Plant hybridization  Plants  Variation  
  55. By: Henslow, George,
    Publication info: London :G. Newnes,1901.
    Holding Institution: Research Library, The Getty Research Institute (archive.org)
    Subjects: Fertilization  Fertilization of plants  Flowers  Morphology  Plants  Variation  
  56. By: Kellogg, Vernon Lyman, - Smith, Ruby Green Bell,
    Publication info: Washington, D. C.,The Academy,1904.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Animals  Insects  Variation  
  57. By: Barnhart, Jesse Melangthon.
    Publication info: 1912.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: 1912  Chemistry  Grasses  Harvesting  Pasture plants  Research  Theses  UIUC  Variation  
  58. By: Bailey, L. H. (Liberty Hyde),
    Edition: 5th ed.
    Publication info: New YorkMacmillan1906
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Evolution  Plants  Plants, Cultivated  Variation  
  59. By: Gritis, Paul A. - Voris, Harold K.
    Publication info: [Chicago] :Field Museum of Natural History,1990.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Hydrophidae  Lapemis  Variation  
  60. 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.
    Holding Institution: Smithsonian Libraries
    Subjects: Anatomy  Mammals  Morphology (Animals)  Variation  Variation (Biology)  
  61. By: Fitch, Henry S.
    Publication info: Lawrence :University of Kansas,1985.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Reproduction  Reptiles  United States  Variation  
  62. By: Blake, Emmet Reid,
    Publication info: Chicago,Chicago Natural History Museum,1961.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Myiozetetes luteiventris  Variation  Zoology  
  63. By: Blake, Emmet Reid,
    Publication info: [Chicago]Chicago Natural History Museum,1961.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Ecology  Geotrygon frenata  Variation  
  64. By: Robson, G. C. (Guy Coburn), - Richards, Owain Westmacott,
    Publication info: London,Longmans, Green and co.[1936]
    Holding Institution: MBLWHOI Library
    Subjects: Evolution  Natural selection  Variation  Zoology  
  65. By: Ruthven, Alexander Grant,
    Publication info: Washington,Govt. print. off.,1908.
    Holding Institution: Smithsonian Libraries
    Subjects: Animals  Garter snakes  Variation  
  1. By: Falk, Bryan G.
    Type: Article
    Date: 2015-07-07
    Publication info: 2015-07-07
    Subjects: Anoles  Caribbean Area  Paraphayngodon cubensis  Parasites  Plasmodium floridense  Spauligodon anolis  Variaiton  Variation  
  2. By: Hayashi, Ryota
    Type: Article
    In: ZooKeys
    Volume: 327
    Date: 2013
    Page Range: 35-42
    Publication info: Pensoft Publishers 2013
    Subjects: Cylindrolepas  epibiont  mitochondrial genes 12S and 16S  redescription  Turtle barnacle  Variation  
  3. By: Grajales, Alejandro.
    Type: Article
    Date: 2014-01-01
    Publication info: 2014-01-01
    Subjects: Aiptasia  Exaiptasia brasilensis  Exaiptasia pallida  Morphology  Sea anemones  Variation  
  4. By: Zaher, Hussam. - Souza,Ivan - Gower,David J. - Hingst-Zaher,Erika - Silva Jr,Nelson Jorge da
    Type: Article
    In: Papéis Avulsos de Zoologia (São Paulo)
    Date: 2005-01-01
    Subjects: Atractus albuquerquei  Dipsadinae  Distribution  Serpentes  Variation  
  5. By: Warren,Andrew D. - Mielke, Olaf H. H. (Olaf Hermann Hendrik)
    Type: Article
    In: Revista Brasileira de Zoologia
    Date: 2005-03-01
    Subjects: Arizona  Mexico  Neotropical  Texas  Variation
  6. By: Stanley, Edward L., 1982-
    Type: Article
    Date: 2013-09-05
    Publication info: 2013-09-05
    Subjects: Cordylidae  Ecophysiology  Morphology  Variation