86254. Watson, S.   New Plants of Northern Arizona and The Region Adjacent.   The American Naturalist, 1873, The American Naturalist, Volume 7, Number 5 : 15 pages.   Softbound, authors original typed manuscript, some signs of age, very good condition.    $100.00

86255. Watson, S.   On Section Avicularia of the Genus Polygonum.   The American Naturalist, 1873, The American Naturalist, Volume 7, Number 11 : 10 pages.   Softbound, authors original typed manuscript, some signs of age, very good condition.    $100.00

16649. The American Naturalist.   The American Naturalist.   The American Naturalist, 1880, The American Naturalist, 14 (2) : .   Printed wraps, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

16651. The American Naturalist.   The American Naturalist.   The American Naturalist, 1881, The American Naturalist, 15 (1) : .   Printed wraps, tape repair to spine, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

16652. The American Naturalist.   The American Naturalist.   The American Naturalist, 1881, The American Naturalist, 15 (11) : .   Printed wraps, tape repair to spine, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

111863. Dall, W. H.   American Work on Recent Mollusca in 1880.   American Naturalist, 1881, American Naturalist, 1881 : pages 704-718.   Softbound, stapled text extracted from a larger volume, previous owners name, good plus condition.    $7.00

111862. Dall, W. H.   American Work on Recent Mollusca in 1881.   American Naturalist, 1882, American Naturalist, 1882 : pages 953-968.   Softbound, stapled text extracted from a larger volume, previous owners name, good plus condition.    $7.00

16653. The American Naturalist.   The American Naturalist.   The American Naturalist, 1887, The American Naturalist, 21 (8) : .   Printed wraps, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

16654. The American Naturalist.   The American Naturalist.   The American Naturalist, 1887, The American Naturalist, 21 (9) : .   Printed wraps, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

16691. The American Naturalist.   The American Naturalist : Includes article by E. D. Cope on the Cetacea.   The American Naturalist, 1890, The American Naturalist, 24 (283) : .   Printed wraps, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

16688. The American Naturalist.   The American Naturalist.   The American Naturalist, 1890, The American Naturalist, 24 (280) : .   Printed wraps, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

16689. The American Naturalist.   The American Naturalist.   The American Naturalist, 1890, The American Naturalist, 24 (281) : .   Printed wraps, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

16690. The American Naturalist.   The American Naturalist.   The American Naturalist, 1890, The American Naturalist, 24 (282) : .   Printed wraps, edge chipping, minor previous owner marks on wraps, signs of use and age, text in good to very good condition.    $19.00

20220. Grabau, A. W.   Studies of Gastropoda.   The Athenaeum Press, 1902, American Naturalist, 36 (432) : 917-945, 18 figures.   Printed wraps, minor previous owner mark on front wrap, minor signs of use and age discoloration, text in very good condition.   Contributions from the Geological Department of Columbia University Volume 10 No. 89.   $22.00

20221. Grabau, A. W.   Studies of Gastropoda. II. Fulgur and Sycotypus.   The Athenaeum Press, 1903, American Naturalist, 37 (440) : 515-539, 19 figures and 1 table of species.   Printed wraps, minor previous owner mark on front wrap, signs of use and age discoloration, text in very good condition.   Contributions from the Geological Department of Columbia University Volume 11 No. 95.   $19.00

20222. Grabau, A. W.   Studies of Gastropoda. III. On Orthogenetic Variation in Gastropoda.   The Athenaeum Press, 1907, American Naturalist, 41 (490) : 607-651, 1 diagram, 3 plates with 19 figures.   Reprint, stitched bound with two hole punches along spine that do not impact text, minor previous owner mark on cover page, other minor signs of use and age discoloration, text in very good condition.    $27.00

67426. Leavitt, R. G.   The Geographic Distribution of Nearly Related Species.   Ames Botanical Laboratory, Boston, 1907, The American Naturalist, Volume 41, Number 484 : pages 207-240.   Printed wraps, previous owners book stamp, minor signs of use and age, text in very good condition.    $11.00

67331. Hus, H. T.   Fasciations of Known Causation.   The American Society of Naturalists, 1908, The American Naturalist, Volume 42, Number 494 : pages 81-97 with 2 photos illustrations.   Printed wraps with some edge wear, signed by the author, previous owners book stamp, other minor signs of use and age, text in very good condition.    $8.00

96157. Moodie, R. L.   The Ancestry of the Caudate Amphibia.   The American Naturalist, 1908, The American Naturalist, Volume 42, Number 498 : 361-373 with 10 figures.   Softbound, signed by the author, chipped wraps, text in very good condition.    $8.00

111852. Dall, W. H.   Notes on the Relations of the Molluscan Fauna of the Peruvian Zoological Province.   American Naturalist, 1909, American Naturalist, Volume 43 : pages 532-541.   Softbound, previous owners name, very good condition.    $5.00

96158. Smith, B.   On Some Dinichthyid Armor Plates From the Marcellus Shale.   The American Naturalist, 1909, The American Naturalist, Volume 43 : 588-597 with 3 figures.   Softbound, signed by the author, chipped wraps, text in very good condition.    $8.00

67286. Harris, J. A.   Is There a Selective Elimination of Ovaries in the Fruiting of the Leguminosae?.   The American Society of Naturalists, 1909, The American Naturalist, Volume 43 : pages 556-559 with 2 tables.   Reprint, previous owners book stamp, minor signs of use and age, text in very good condition.    $2.00

67281. Harris, J. A.   Variation in the Number of Seeds per Pod in the Broom, Cytisus Scoparius.   The American Society of Naturalists, 1909, The American Naturalist, Volume 43 : pages 350-355 with 2 tables.   Reprint, previous owners book stamp, minor signs of use and age, text in very good condition.    $5.00

86252. Gates, R. R.   The Material Basis of Mendelian Phenomena.   The American Naturalist, 1910, The American Naturalist, Volume 44 : pages 203-213.   Softbound, previous owners book stamp, text in very good condition.    $5.00

67287. Harris, J. A.   A Bimodal Variation Polygon in Syndesmon Thalictroides and Its Morphological Significance.   The American Society of Naturalists, 1910, The American Naturalist, Volume 44 : pages 19-30 with 6 tables.   Printed wraps, previous owners book stamp, minor signs of use and age, uncut text in very good condition.    $8.00

67130. Harper, R. A.   Nuclear Phenomena of Sexual Reproduction in Fungi.   The American Society of Naturalist, 1910, The American Naturalist, Volume 44 : pages 533-546.   Printed wraps, previous owners book stamp, minor signs of use and age, text in very good condition.    $8.00

67640. Ramaley, F.   Mendelian Proportions and the Increase of Recessives.   The American Society of Naturalist, 1912, American Naturalist, Volume 46 : pages 344-351 with 3 tables.   Reprint, previous owners book stamp, minor signs of use and age, text in very good condition.    $8.00

67976. Waldron, L. R.   Hardiness in Successive Alfalfa Generations.   The American Society of Naturalists, 1912, The American Naturalist, Volume 46 : pages 463-469.   Reprint, previous owners book stamp, usual signs of use and age, text in good or better condition.    $5.00

67905. Tennent, D. H.   The Correlation Between Chromosomes and Particular Characters in Hybrid Echinoid Larvae.   The American Society of Naturalists, 1912, The American Naturalist, Volume 46 : pages 68-75.   Printed wraps, previous owners book stamp, minor signs of use and age, text in very good condition.    $5.00

87316. Surface, F. M.   The Fourth International Genetics Conference.   The American Society of Naturalists, 1913, The American Naturalist, Number 47 : pages 637-640.   Softbound, previous owners book stamp, signs of use and age, text in good condition.    $4.00

67131. Freeman, G. F.   Physiological Correlations and Climatic Reactions in Alfalfa Breeding.   The American Society of Naturalist, 1914, The American Naturalist, Volume 48 : pages 356-368.   Printed wraps, previous owners book stamp, minor signs of use and age, text in very good condition.    $8.00

87317. Gates, R. R.   Galton and Discontinuity in Variation.   The American Society of Naturalists, 1914, The American Naturalist, Number 48 : pages 697-699.   Softbound, previous owners book stamp, signs of use and age, text in good condition.    $3.00

86253. Gates, R. R.   On the Modification of Characters by Crossing.   The American Naturalist, 1915, The American Naturalist, Volume 49 : pages 562-569.   Softbound, previous owners book stamp, text in very good condition.    $5.00

87318. Surface, F. M.   A Note on the Inheritance of Eye Pattern in Beans and Its Relation to Type of Vine.   The American Society of Naturalists, 1916, The American Naturalist, Number 50 : pages 577-586 with 3 figures and 1 table.   Softbound, previous owners book stamp, signs of use and age, text in good condition.    $5.00

66790. Harris, J. A.   Biometric Studies on the Somatic and Genetic Physiology of the Sugar Beet.   The American Society of Naturalist, 1917, American Naturalist, Volume 51 : pages 507-512.   Reprint, previous owners book stamp, minor signs of use and age, text in very good condition.    $3.00

87313. Barbour, T.   Reptiles in the East and West Indies - And Some Digression.   The American Society of Naturalists, 1923, The American Naturalist, Number 57 : pages 125-128.   Softbound, previous owners book stamp, signs of use and age, text in good condition.    $4.00

60617. Walton, L. B.   The Polychaete Ancestry of the Insects. I. The External Structure.   The University of Chicago Press, 1927, American Naturalist, Volume 61 : pages 226-250 with 11 figures.   Reprint, previous owners signature, minor signs of age, text in very good condition.    $9.00

87311. Parker, G. H.   The Growth of the Loggerhead Turtle.   The American Society of Naturalists, 1929, The American Naturalist, Volume 63 : pages 367-373.   Softbound, previous owners book stamp, usual signs of use and age, untrimmed text in good condition.    $5.00

87314. Brooks, B. W. et al.   A Cytological and Genetical Study of Petunia. II. Notes on Certain Phases of Sterility.   The American Society of Naturalists, 1930, The American Naturalist, Number 64 : pages 91-93.   Softbound, previous owners book stamp, signs of use and age, text in good condition.    $3.00

67539. Navashin, M.   A Preliminary Report on Some Chromosome Alterations by X-rays in Crepis.   The American Society of Naturalists, 1931, The American Naturalist, Volume 65 : pages 243-252.   Reprint, previous owners book stamp, minor signs of use and age, text in very good condition.    $5.00

67134. Anderson, E.   Internal Factors Affecting Discontinuity Between Species.   The American Society of Naturalist, 1931, The American Naturalist, Volume 65 : pages 144-148.   Reprint, very good condition.    $5.00

86248. Fasten, N.   The Yaquina Oyster Beds of Oregon.   The American Naturalist, 1931, The American Naturalist, Volume 55 : pages 434-468 with 12 figures.   Softbound, previous owners name and book stamp, text in very good condition.    $26.00

87315. Ferguson, M. C.   To Determine Genetical Ratios When Selfing Organisms Heterozygous for Two or More Factors.   The American Society of Naturalists, 1932, The American Naturalist, Number 66 : pages 91-93.   Softbound, previous owners book stamp, signs of use and age, text in good condition.    $3.00

67135. Allen, C. E.   Sex-Inheritance and Sex-Determination.   The American Society of Naturalist, 1932, The American Naturalist, Volume 66 : pages 97-107.   Printed wraps, previous owners book stamp, minor signs of use and age, uncut text in very good condition.    $9.00

60625. Brues, C. T.   Progressive Change in the Insect Population of Forests Since the Early Tertiary.   The University of Chicago Press, 1933, American Naturalist, Volume 67 : pages 385-406.   Reprint, previous owner marks, signs of use and age, text in good condition.    $4.00

8730. Stock, C.   The Succession of Mammalian Forms within the Period in which Human Remains are Know to Occur in America.   , 1936, The American Naturalist, 70 (729) : 324-331.   Off-print, small binding holes along spine that do not impact text, minor sing of use and age, text in very good condition.    $5.00

8549. Stock, C.   The Succession of Mammalian Forms within the Period in which Human Remains are Known to Occur in America.   , 1936, The American Naturalist, 70 (729) : 324-331.   Previous owner marks including Craig C. Black signature, minor water damage along bottom that does not impact text, otherwise very good.    $6.00

60615. Hall, E. R.   Variation Among Insular Mammals of Georgia Strait, British Columbia.   The University of Chicago Press, 1938, American Naturalist, Volume 72 : pages 453-463.   Printed wraps, previous owners marks on front wrap, usual signs of age, text in good condition.    $5.00

87312. Wilson, F. H.   Preliminary Experiments on the Color Changes of Anlis Carolinensis (Cuvier).   The American Society of Naturalists, 1939, The American Naturalist, Number 73 : pages 190-192.   Softbound, previous owners book stamp, usual signs of use and age, text in good condition.    $3.00

60614. Hamilton, W. J.   Winter Reduction of Small Mammal Populations and Its Probable Significance.   The University of Chicago Press, 1942, American Naturalist, Volume 76 : pages 216-218 with 1 figure.   Reprint, previous owners book stamp, usual signs of age, text in good condition.    $1.00