Conaway, C. H. 1952. Life history of the water shrew (Sorex palustris navigator). Am. Midl. Nat. 48:219-247.

Rose, E. T. and T. Moen. 1952. The increase in game fish populations in East Okoboji Lake, Iowa, following intensive removal of rough fish. Transactions American Fisheries Society. 82:104-114.

Daiber, F. C. 1952. The food and feeding relationships of freshwater drum, Apodinotus grunniens (Rafinesque), in western Lake Erie. Ohio Journal of Science 52(1):35-46.

Olson, S. T., and W. H. Marshall. 1952. The common loon in Minnesota. Minnesota Mus. Nat. Hist., Occas. Paper No. 5, University of Minnesota Press, Minneapolis, Minnesota.

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.

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.

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.

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

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

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.

S51SPRSBNMUS, Legacy reference. Physical copy not yet located.

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.

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

Quimby, D.C. 1951. Life history and ecology of the jumping mouse, Zapus hudsonius. Ecol. Monogr. 21(1):61-95.

Hall, E.R. 1951. American Weasels. Univ. Kansas Publication, Museum Natural History, 4:1-466.

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

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.

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.

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

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.]

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

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.

Hart, C.M., O.S. Lee, and J.B. Low. 1950. The sharp-tailed grouse in Utah: its life history, status and management. Pub. No. 3, Utah State Department of Fish and Game.

Fitch, F. W., Jr. 1950. Life history and ecology of the scissor-tailed flycatcher, MUSCIVORA FORFICATA. Auk 67:145-168.

Low, J. B., L. Kay, and D. I. Rasmussen. 1950. Recent observations on the white pelican on Gunnison Island, Great Salt Lake, Utah. Auk 67:345-356.

Heter, E. W. 1950. Transplanting beavers by airplane and parachute. Journal of Wildlife Management 14:143-147.

Miller, R.R. 1950. Notes on the cutthroat and rainbow trouts with the description of a new species from the Gila River, NM. Occas Pap Mus Zool Univ Michigan. 529:1-42.

Lowe, C.H. 1950. The systematic status of the salamander Plethodon hardii, with a discussion of biogeographical problems in Aneides, Copeia, no 2, pp 92-99.

Smith, M. W. 1950. The use of poisons to control undesirable fish in Canadian fresh waters. Canadian Fish-Culturist. 8:17-29.

Schroder, R. C. 1950. Hibernation of blue racers and bull snakes in western Illinois. Natural History Miscellany 75:1-2.

Hershkovitz, P. 1950. Mammals of northern Colombia. Preliminary report no. 6: Rabbits (Leporidae), with notes on the classification and distribution of the South American forms. Proceedings of the United States National Museum 100:327-375.

Scott, F. R. 1950. Winter Season - 1949-1950 - Virginia. Raven 21:100-1.

Eschmeyer, P. H. 1950. The life history of the walleye, Stizostedion vitreum (Mitchill), in Michigan. Michigan Department of Conservation, Bulletin of the Institute for Fisheries Research 3:1-99.

LaRivers, Ira. 1950. The meeting point of Ambrysus and Pelocoris in Nevada. Pan-Pacific Ent. XXVI(1): pp. 91-21.