Vesall, D. B. 1940. Notes on nesting habits of the American bittern. Wilson Bulletin. 52:207-8.

Baumgartner, L.L. 1940. The fox squirrel: Its life history, habits, and management in Ohio. Ohio State Univ., unpubl. Ph. D. dissertation, 257 pp.

Taber, F.W. 1940. Range of the coati in the United States. J.. Mamm. 21:11-14.

Todd, W. E. C. 1940. Birds of western Pennsylvania. Carnegie Museum, University of Pittsburgh Press, Pittsburgh, Pennsylvania. 710 pp.

Benson, S.B. 1940. A new cotton rat (Sigmodon) from Arizona and New Mexico. Proc. Bio. Soc. Wash. 53:157-158.

Tucker, R. W. E. 1940. An account of Dicatraea saccharalis with special refernce to its occurrence in Barbados. Trop. Agric., Trinidad 17:133-138.

Allen, R. P. and F.P. Mangles. 1940. Studies of the nesting behavior of the black-crowned night heron. Proc. Linnaean Soc. New York 50-51:1-28.

Carr, A. F., Jr. 1940. A contribution to the herpetology of Florida. Univ. Florida Biol. Sci. Ser. 3:1.118.

Brooks, M. 1940. The breeding warblers of the central Allegheny Mountain region. Wilson Bulletin 52(4):249-66.

Davison, V. E. 1940. An 8-year census of lesser prairie chickens. Journal of Wildlife Management 4:55-62.

Cowan, I. M. 1940. Distribution and variation in the native sheep of North America. American Midland Naturalist 24:505-580.

Bent, A.C. 1940. Life histories of North American cuckoos, goatsuckers, hummingbirds, and their allies. Part I. U.S. National Museum Bulletin 176. 244 pp.

Eskey, C. R. and V. H. Haas. 1940. Plague in the western part of the United States. Public Health Bulletin 254:1-83.

Griffin, D. R. 1940b. Migrations of New England bats. Bulletin of the Museum of Comparative Zoology 86:217-246.

Gabrielson, I. N., and S. G. Jewett. 1940. Birds of Oregon. Corvallis, Oregon: Oregon State College.

Frey, D. G. 1940. Growth and ecology of the carp, CYPRINUS CARPIO (Linnaeus), in four lakes of the Madison region, Wis-consin. PhD. Thesis. 248 pp.

Gurney, A.B. 1940. Notes on certain genera of North American grasshoppers of the subfamily Oedipodinae, with the description of a new genus and species (Orthoptera:Acrididae). January 1940. Proceedings of the Entomological Society of Washington 42:1-13.

Gregg, W.O. 1940. Mollusca of Zion National Park, Utah. Nautilus 54:30-32.

Hershey, A.L. & P.J. Leyendecker. 1940. Leafl. West. Botany 4:22.

Gurney, A.B. 1940. Notes on certain genera of North American grasshoppers of the subfamily Oedipodinae, with the description of a new genus and species (Orthoptera: Acrididae). Proc. Ent. Soc. Washington 42: 1-12.

Pennell, F. W. 1940. New species of Scrophulariaceae from Arizona. Notulae Naturae 43: 1-40.

Jones, D.T. 1940. A study of the Great basin land snail OREOHELIX STRIGOSA DEPRESSA (Cockerell). Bulletin of the University of Utah [Biological Series 6(1)] 31(4):1-43.

Lakela, O. 1940. The status of piping plovers (Charadrius melodus) on Minnesota Point. Flicker 12:34.

Raney, E.C. and D.S. Webster. 1940. The food and growth of the young of the common bullhead, Ameiurus nebulosus nebulosus (LeSueur), in Cayuga Lake, New York. Transactions of the American Fisheries Society 69(1939):205-209.

Gloyd, H. 1940. The rattlesnakes. Chicago Academy Science, Special Publication No. 4.

Smith, C.C. 1940. The effect of overgrazing and erosion upon the biota of the mixed-grass prairie of Oklahoma. Ecology 21:381-397.

Sperry, C. C. 1940. Food habits of a group of shorebirds: woodcock, snipe, knot and dowitcher. U.S. Biological Survey Wildlife Research Bulletin 1.

Trautman, M. B. 1940. The birds of Buckeye Lake. Misc. Publ. Zool. No. 44, University of Michigan, Ann Arbor, Michigan. 466 pp.

Pilsbry, H.A. 1940. Land mollusca of North America (north of Mexico). Acad. Nat. Sci. Phil. Monograph no 3. Vol. 1 pt. 2. pp. 575-994.

Van Dersal, W.R. 1940. Utilization of oaks by birds and mammals. Journal of Wildlife Management. 4:404-428.

Speirs, J. M. 1940. Mortality of barn owls at Champaign, Illinois. Auk 57:571.

Draudt, M. 1940. Notodontidae. Pages 901-1070 in A. Seitz. The Macrolepidoptera of the World. Volume 6, Part 2. Alfred Kernen, Stuttgart, Germany.

Walkinshaw, L. H. 1939. Notes on the nesting of the Clay-colored Sparrow. Wilson Bulletin 51:17-21.

Hubbell, T.H. and C.C. Goff. 1939. Florida pocket gopher burrows and their arthropod inhabitants. Proceed. of the FL Academy of Science 4:127-166.

Bent, A.C. 1939d. Life histories of North American woodpeckers, U.S. Nat'l. Mus. Bull. 174. Washington, D.C.

Niedrach, R. J., and R. B. Rockwell. 1939. The birds of Denver and mountain parks. Denver Museum of Natural History Popular Series No. 5. 203 pp.

Christy, B. H. 1939. CEOPHLOEUS PILEATUS ABIETICOLA Bangs. Northern pileated woodpecker. Pages 171-89 in A. C. Bent (editor). Life Histories of North American Woodpeckers. U.S. National Museum Bulletin, No. 174.

Pilsbry, H.A. 1939. Land mollusca of North America. The Academy of Nat. Sci. of Philadelphia Monographs. 3(I) 1:322.

Allen, A.A. 1939. Golden plover and other birds. 240 pp.

Forbush, E. H. 1939. Natural history of the birds of eastern and central North America. J. B. May (reviser). Houghton Mifflin Company, Boston, Massachusetts. 554 pp.

Tinbergen, N. 1939. The behavior of the snow bunting in spring. Trans. Linn. Soc. 5. 94 pp.

Bent, A. C. 1939a. CEOPHLOEUS PILEATUS PILEATUS (Linneaus). Southern pileated woodpecker. Pages 164-71 in A. C. Bent (editor). Life Histories of North American Woodpeckers. U.S. National Mueseum Bulletin, No. 174.

Pilsbry, H. A. 1939a-1948. Land Mollusca of North America (North of Mexico.) George W. Carpenter Fund for the Encouragement of Original Scientific Research, Philadelphia, Pennsylvania. 2107 pp.

Bent, A. C. 1939b. CEOPHLOEUS PILEATUS FLORIDANUS (Ridgway). Florida pileated woodpecker. Pages 189-91 in A. C. Bent (editor). Life Histories of North American Woodpeckers. U.S. National Museum Bulletin, No. 174.

Bent, A. C. 1939c. CEOPHLOEUS PILEATUS PICINUS (Bangs). Western pileated woodpecker. Pages 191-4 in A. C. Bent, Life Histories of North American Woodpeckers. U.S. National Museum Bulletin, No. 174.

Pope, C.H. 1939. Turtles of the United States and Canada. Alfred A. Knopf, New York. 343 pp.

Buss, I. O., and A. S. Hawkins. 1939. The upland plover at Faville Grove, Wisconsin. The Wilson Bulletin 51:202-20.

Hamerstrom, F. N. 1939. A study of Wisconsin's Prairie Chickens and Sharp-tailed Grouse. Wilson Bulletin 51:105-120.

Forbush, E. H. and J. B. May. 1939. Natural History of Birds of Eastern and Central North America. Houghton Mifflin Company, Boston.

Pilsbry, H.A. 1939. [Excerpts titled: Oreohelix pilsbryi and Oreohelix metcalfei florida] Land mollusca of North America (north of Mexico). Monograph. Acad. Nat. Sci., Philadelphia 3(I)1:513-514.

Wilcox, L. 1939. Notes on the life history of the piping plover. Pages 3-13 in The Birds of Long Island. Bird Club of Long Island, New York, New York.

Cottam, C. and P. Knappen. 1939. Food of some uncommon North American birds. Auk 56:138-169.

Wallace, G.J. 1939. Bicknell's thrush, taxonomy, distribution, and life history. Boston. 190 pp.

Pilsbry, H.A. 1939b. Land Mollusca of North America (North of Mexico). Volume 1, Part 1. Monograph of the Academy of Natural Sciences of Philadelphia 1(1): 1-573.

Bent, A. C. 1938. Life histories of North American birds of prey. Part 2. U.S. Nat. Mus. Bull. 170. 482 pp., 92 pls.

Emerson, S. 1938. The genetics of self-incompatibility in Oenothera organensis. Genetics 23:190-202.

Witherby, H. F., F. C. R. Jourdain, N. F Tcehurst, and B. W. Tucker. 1938. The Handbook of British Birds. Volume 2: Warblers to Owls. H. F. and G. Witherby Ltd., London, United Kingdom. 352 pp.

Ahrens, C. 1938. A list of dragonflies taken during the summer of 1936 in western United States (Odonata). Entomological News. 49:9-16.

Bennett, L.J. 1938. The blue-winged teal: its ecology and management. Ames, Iowa. 144pp.

Van der Schalie, H. 1938. The naiad fauna of the Huron River in southeastern Michigan. Miscellaneous Publication of the Museum of Zoology, University of Michigan 40:7-78.