NATIVE WOODY PLANTS OF THE UNITED STATES 317 



(534) SPERRY, C. C. 



1933. AUTUMN FOOD HABITS OP COYOTES: A REPORT OF PROGRESS, 1932. 



Jour. Mammal. 14: 216-220, illus. 



(535) - 



1934. WINTER FOOD HABITS OP COYOTES: A REPORT OF PROGRESS, 1933. 



Jour. Mammal. 15: 286-290, illus. 



(536) SPIKER, C. J. 



1935. SOME LATE WINTER AND EARLY SPRING OBSERVATIONS ON THE3 WHITE- 



TAILED DEER OP THE ADiRONDAOKS. Roosevelt Wildlife Bull. 6: 

 327-385, illus. 



(537) SPRATT, E. R. 



1919. A COMPARATIVE ACCOUNT OF THE ROOT-NODULES OF THE LEGUMINOSAE. 



Ann. Bot. [London] 33: [189J-199, illus. 



(538) STALLABD, H. 



1929. SECONDARY SUCCESSION IN THE CLIMAX FOREST FORMATION OF NORTH- 



ERN MINNESOTA. Ecology 10: 476-547, illus. 



(539) STANDLEY, P. C. 



1920-26. TREES AND SHRUBS OF MEXICO. U. S. Natl. Mus. Contrib. U. S. 

 Natl. Herbarium 23, 1721 pp. 



(540) STEARNS, R. E. C. 



1882. THE ACORN-STORING HABIT OF THE CALIFORNIA WOODPECKER. Amer. 



Nat. 16: 353-357. 



(541) STEMBN, T. R., and MYERS, W. S. 



1937. OKLAHOMA FLORA. 706 pp., illus. Oklahoma City. 



(542) STEPHENS, F. 



1919. AN ANNOTATED LIST OF THE BIRDS OF SAN DIEGO COUNTY, CALIFORNIA. 



San Diego Soc. Nat. Hist. Trans. 3: 142-180. 



(543) STEPHENS, T. C. 



1917. BIRD RECORDS DURING THE PAST WINTER, 1916-1917, IN NORTHWEST- 



ERN IOWA. 'Iowa Acad. Sci. Proc. 24 : 245-258. 



(544) STEYERMARK, J. A. 



1932. A REVISION OF THE GENUS MENODORA. Mo. Bot. Gard. Ann. 19 : 87- 

 176, illus. 



(545) STODDARD, H. L. 



1932. THE BOBWHITE QU1AIL, ITS HABITS, PRESERVATION, AND INCREASE. 



559 pp., illus. New York. 



(546) STOKES, S. G. 



1936. THE GENUS ERIOGONUM J A PRELIMINARY STUDY BASED ON GEOGRAPHIC 



DISTRIBUTION. 124 pp. San Francisco. 



(547) STONE, W., and CRAM, W. E. 



1905. AMERICAN ANIMALS ; A POPULAR GUIDE TO THE MAMMALS OF NORTH 

 AMERICA NORTH OF MEXICO, WITH INTIMATE BIOGRAPHIES OF THE 



MORE FAMILIAR SPECIES. 318 pp., illus. New York. 



(548) STRAUSBAUGH, P. D., CORE, E. L., and AMMONS, N. 



1931. COMMON SEED PLANTS OF THE MID-APPALACHIAN REGION. 305 pp., 



illus. Morgantown, W. Va. 



(549) SUDWORTH, G. B. 



1908. FOREST TREES OF THE PACIFIC SLOPE. U. S. Dept. Agr. 441 pp., 



illus. Washington, D. C. 



(550) - 



1915. THE CYPRESS AND JUNIPER TREES OF THE ROOKY MOUNTAIN REGION. 



U. S. Dept. Agr. Bull. 207, 36 pp., illus. 



(551) - 



1916. THE SPRUCE AND BALSAM FIR TREES OF THE ROCKY MOUNTAIN REGION. 



U. S. Dept. Agr. Bull. 327, 43 pp., illus. 



1917. THE PINE TREES OP THE ROCKY MOUNTAIN REGION. U. S. Dept. Agr. 



Bull. 460, 47 pp., illus. 



(553) - 



1918. MISCELLANEOUS CONIFERS OF THE ROOKY MOUNTAIN REGION. U. S. 



Dept. Agr. Bull. 680, 45 pp., illus. 



(554) - 



1927. CHECK LIST OF THE FOREST TREES OF THE UNITED STATES : THEIR 



NAMES AND RANGES. U. S. Dept. Agr. Misc. Cir. 92, 295 pp. 



(555) - 



1934. POPLARS, PRINCIPAL TREE WILLOWS, AND WALNUTS OF THE ROCKY 



MOUNTAIN REGION. U. S. Dept. Agr. Tech. Bull. 420, 112 pp., 

 illus. 



