Hitchcock, C.L. 1941. Drabas of western North America. Univ. Wash. Publ. Biol. 11:41, 1941. P.41.

Noyes, G. H. 1941. New England section. U.S. Weather Bureau, Climatological Data 52(13)73-77.

Stoner, D., and L. C. Stoner. 1941. Feeding of nestling Bank Swallows. Auk 58:52-55.

Lehmann, V. W. and H. Ward. 1941. Some plants valuable to quail in southwestern Texas. Journal of Wildlife Management 5:131-135.

Ridgway, R., and H. Friedmann. 1941. The birds of North and Middle America. Part IX. U.S. Natl. Mus. Bull. 50.

Wright, B. A. 1941. Habit and habitat studies of the massasauga rattlesnake (Sistrurus catenatus catenatus Raf.) in northeastern Illinois. American Midland Naturalist 25:659-672.

Barnickol, P. G. 1941. Food habits of Gambusia affinis from Reelfoot Lake, Tennessee, with special reference to malarial control. Report of the Reelfoot Lake Biological Station 5:5-13.

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

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

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.

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

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

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

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.

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.

Hershey, A. L. 1940. Notes on Plants in New Mexico Volume 2. No 15. New Mexico State College. 1 p.

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

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

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.

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.

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

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.

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

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

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

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.

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

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

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.

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.

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

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

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

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

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.

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.

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.

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

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

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

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.

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

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.

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.