Fitch, H.S., P. Goodrum and C. Newman. 1952. The armadilloin the southeastern U.S. Jour. Mamm. 33:21-37.

Allen, R.P. and M.M. Nice. 1952. A study of the breeding biology of the purple martin (PROGNE SUBIS). Amer. Midland- Nat. 47(3):606-65.

Barneby, R. C. 1952. Pugillus Astragalorum XIV: Notes on Sect. Lonchocarpi. Leaflets of Western Botany. 6(9): 172-176.

Barneby, R.C. 1952. Pugillus astragalorum X1V: notes on sec Lonchocarpi. Leafl. West. Bot. 6(9):172-177.

Dexter, R. W. 1952a. Extra-parental cooperation in the nesting of Chimney Swifts. Wilson Bulletin 64:133-139.

Enders, R.K. 1952. Reproduction in the mink (Mustela vision) -- Proc. American Philos. Soc., 96:691-755.

Denney, R. N. 1952. A summary of North American beaver management, 1946-1948. Colorado Game and Fish Department, Curr. Rep. 28. 58 pp.

George, J.L. 1952. The birds on a southern Michigan farm. Ph.D. dissertation. University of Michigan, Ann Arbor, Michigan. 413 pp.

Davis, D.E. 1952. Le Conte's Sparrow in western Montana. Condor 54:115-116.

Hoyt, S. F. 1952. An additional age record of a pileated woodpecker. Bird-Banding 23:29-30.

Cassel, J.F. 1952. Breeding bird populations at various altitudes in north central Colorado. Ph.D. dissertation. University of Colorado, Boulder, CO. 147 pp.

Hakala, J. B. 1952. The life history and general ecology of the beaver (Castor canadensis Kuhl) in interior Alaska. M.S. thesis, University of Alaska, Fairbanks. 181 pp.

Murray, J. J. 1952. A check-list of the birds of Virginia. Virginia Soc. Ornithol.

Dexter, R. W. 1952b. Hazardous nesting of the Chimney Swift. Auk 69:289-293.

Stewart, R. E., and C. S. Robbins. 1952. Birds of Maryland and the District of Columbia. North American Fauna 62, U.S. Fish and Wildlife Service. 401 pp.

Durrant, S. D. 1952. Mammals of Utah: taxonomy and distribution. Univ. Kansas Publ. Mus. Nat. Hist. 6:1-549.

Maki, T. E. 1952. Local longleaf pine seed years. J. For. 50:321-2.

Allen, R.P. 1952. The Whooping Crane. New York. National Audubon Society Research Report #3. 249 pp.

Miller, N. J. 1952. Carp: control and utilization. Wisconsin Conservation Bulletin. 17(5):3-7.

Dano, L. 1952. Cottontail rabbit (SYLVILAGUS AUDOBONII BAILEYI) populations in relation to prairie dog (CYNOMYS LUDOVICIANUS LUDOVICIANUS ) towns. Colorado State University, Fort Collins, CO. M.S. Thesis.

Carr, A. 1952. Handbook of turtles. Comstock Publishing Associates, Ithaca, New York. 542 pp.

Pearson, O.P., M.R. Koford and A.K. Pearson. 1952. Reproduction of the lump-nosed bat (Corynorhinus rafinesquii) in California. J. Mamm. 33:273-320.

Reid, K. A. 1952. Effects of beavers on trout waters. Maryland Conserv. 29(4):21-23.

Davis, J. 1951. Distribution and variation of the brown towhee. Univ. California Publ. Zool., Berkeley.

Buss, I. O. 1951. The upland plover in southwestern Yukon Territory. Arctic 4:204-13.

Ross, H.H. 1951. The Trichoptera of lower California. Proceedings of the California Academy of Sciences 27(3): 65-76.

Hoyt, J. S. Y., and S. F. Hoyt. 1951. Age records of pileated woodpeckers. Bird-Banding 22:125.

Gould, F.W. 1951. Grasses of the Southwestern United States. University of Arizona Press, Tucson.

Hall, E. Raymond. 1951. American weasels. Univ. Kansas Publications, Museum of Natural History. 466 pp.

Eisenmann, E. 1951. Northern birds summering in Panama. Wilson Bull. 63:181-185.

Tordoff, H. B., and G. P. Young. 1951. Short-billed marsh wren breeding in Kansas. Wilson Bulletin 63:44.

Barbour, R. W. 1951. Observations on the breeding habits of the red-eyed towhee. American Midland Naturalist 45:672-678.

Vaurie, P. 1951. Six new subspecies of tiger beetles of the genus Cicindela and two corrections (Coleoptera:Cicindelidae). American Museum Novitates no. 1479.

Martin, A.C., H.S. Zim, and A.L. Nelson. 1951. American Wildlife and Plants. Dover Publications, Inc., NY.

Hanson, D.F. 1951. Biology of the white crappie in Illinois. Illinois Natural History Survey Bulletin 25(4):211-265.

Byers, E. 1951. Feeding behavior of young American bitterns. Wilson Bulletin. 63:334-6.

Pough, R. H. 1951. Audubon waterbird guide. Doubleday Company, Garden City, New York. 352 pp.

Smith, P. W. 1951. A new frog and a new turtle from the Western Illinois sand praries. Chicago Academy of Science Bulletin 9(10):189-9.

Dexter, R. W. 1951. Diary of five Chimney Swifts. Ohio Journal of Science 51:42-46.

Stewart, R. E. and J. W. Aldrich. 1951. Ecological studies of breeding bird populations in northern Maine. Ecology 33:226-238.

Kent, T. 1951. The least bitterns of Swan Lake. Iowa Bird Life 21:59-61.

Gould, F.W. 1951. Grasses of the Southwestern United States. University of Arizona Press, Tucson, Arizona.

Kearney, T.H., R.H. Peebles, and collaborators. 1951. Arizona flora. 2nd edition with Supplement (1960) by J.T. Howell, E. McClintock, and collaborators. Univ. California Press, Berkeley. 1085 pp.

Hitchcock, A.S. 1951. Manual of the grasses of the United States. 2nd edition revised by Agnes Chase. [Reprinted, 1971, in 2 vols., by Dover Publications, Incorporated, New York.]

Kearney, T.H. and R.H. Peebles. 1951. Arizona flora. University of California Press, Berkeley.

Martin, A.C., H.S. Zim, and A.L. Nelson. 1951. American wildlife and plants: A guide to wildlife food habits. Dover Publications, Inc., New York, NY. 500 pp.

Murie, O. J. 1951. The elk of North America. Stackpole Company, Harrisburg, PA. 376 pp.

Robbins, W. W., M. K. Bellue, and W. S. Ball. 1951. Weeds of California. California Dept. Agric., Sacramento.

Stebbins, R. C. 1951. Amphibians of western North America. University of California Press, Berkeley. 539 pp.

Martin, A. C., H. S., Zim, and A. L. Nelson. 1951. American Wildlife and Plants, a Guide to Wildlife Food Habits, reprint edition. Dover Publications, Garden City, New York. 500 pp.

Wood, N. A. 1951. The birds of Michigan. University of Michigan, Ann Arbor, Museum of Zoology Miscellaneous Publication No. 75. 559pp.

Roe, F.G. 1951. The North American Buffalo. A Critical Studyof the Species in the Wild State. Univ. Toronto Press, Toronto. xi+991 pp.

Young, S.P. and H.H.T. Jackson. 1951. The clever coyote. Part l. its history, life habits, economic status and control. Part ll. classification of the races of the coyote.Wash. 411 pp.

Edmunds, G. F., Jr. 1951. New species of Utah mayflies. I. Oligoneuriidae (Ephemeroptera). Proc. Entomol. Soc. Wash. 53: 327-331.

Dement'ev, G. P., N. A. Gladkov, and E. P. Spangenber. 1951. Birds of the Soviet Union. Israel Prog. for Sci. Translations, Russian translation, Jerusalem, Israel.

Grasse, J. E. 1951. Beaver ecology and management in the Rockies. Journal of Forestry 49(1):3-6.

Hecht, W. R. 1951. Nesting of the marsh hawk at Delta, Manitoba. Wilson Bulletin 63:167-76.

Anthony, A. and D. Foreman. 1951. Observations on the reproductive cycle of the black-tailed prairie dog (CYNOMYS LUDOVICIANUS). Physiol. Zool. 24:242-8.

S51SPRSBNMUS, Legacy reference. Physical copy not yet located.

Bartholomew, G. A., and H. H. Caswell. 1951. Locomotion in kangaroo rats and its adaptive significance. Journal of Mammalogy 32:155-169.