Part 124

PEARSON, O. P., and PEARSON, A. K.

1947. Owl predation in Pennsylvania, with notes on the small mammals of Delaware County. Jour. Mamm., 28:137-147, June 1, 1947.

PITT, F.

1921. Notes on the genetic behavior of certain characters in the polecat, ferret, and in polecat-ferret hybrids. Jour. Genetics, 11:99-115, 2 pls., 5 figs. in text, September, 1921.

POLDERBOER, E. B.

1942. Habits of the least weasel (Mustela rixosa) in northeastern Iowa. Jour. Mamm., 23:145-147, June 3, 1942.

1948. Late fall sexual activity in an Iowa least weasel. Jour. Mamm., 29:296, August 31, 1948.

POLDERBOER, E. B., KUHN, L. W., and HENDRICKSON, G. O.

1941. Winter and spring habits of weasels in central Iowa. Jour. Wildlife Management, 5:115-119, 1 pl., January, 1941.

PREBLE, E. A.

1908. A biological investigation of the Athabasca-Mackenzie region. N. Amer. Fauna, 27:1-574, 25 pls., 13 figs. in text, October 26, 1908.

QUICK, H. F.

1944. Habits and economics of the New York weasel in Michigan. Jour. Wildlife Management, 8:71-78, January, 1944.

RHOADS, S. N.

1894. Contributions to the mammalogy of Florida. Proc. Acad. Nat. Sci. Philadelphia, pp. 152-161, June 19, 1894.

RIDGWAY, R.

1912. Color standards and color nomenclature. Published by the author, Washington, D. C., iii + 43 pp., 53 pls.

ROBINSON, W., and LYON, M. W.

1901. An annotated list of mammals collected in the vicinity of La Guaira, Venezuela. Proc. U. S. Nat. Mus., 24:135-162, October, 1901.

ROTHSCHILD, M.

1942. Change of pelage in the stoat Mustela erminea L. Nature, 149:78, January 17, 1942.

RUSSELL, W. C.

1930. Weasel badly injured by king snake. Jour. Mamm., 11:504-505, November 11, 1930.

SANDERSON, G. C.

1949. Growth and behavior of a litter of captive long-tailed weasels. Jour. Mamm., 30:412-415, 1 fig. in text, November 14, 1949.

SCHLOSSER, M.

1888. Die Affen, Lemuren, Chiropteren, Insectivoren, Marsupialier, Creodonten und Carnivoren des Europäischen Tertiärs. Alfred Hölder, K. K. Hof.-und Univ.-Buchhändler, Wien. Part 2, pp. 225-386, pls. 6-9.

SCHUMACHER, S.