1947. The reptiles and amphibians of western and central Illinois. Bull. Chicago Acad. Sci., 8:21-40.
Stebbins, R. C.
1948. Nasal structure in lizards with reference to olfaction and conditioning of inspired air. Am. Journ. Anat., 83:183-221.
Stebbins, R. C., and Robinson, H. B.
1946. Further analysis of a population of the lizard Sceloporus graciosus gracilis. Univ. California Publ. Zool., 48:149-168, 7 pls., 2 figs.
Stickel, L. F.
1950. Populations and home range relationships of the box turtle, Terrapene c. carolina (Linnaeus). Ecol. Monogr., 20:351-378.
Stickel, W. H., and Cope, J. B.
1947. The home ranges and wanderings of snakes. Copeia, 1947:127-136.
Swanson, P.