Production and Economics 61 
Morton, J. N, 1938, Fur bearing animals add to farm’income, Pa. 
Game News 9(4): 14, Sag Lille. 
Nelson, E- te 1923, The economic importance of wild life. Sci. 
Monthly 16:567-73. ; ‘ 
New York Forest, Fish and Game Commission. 1907. (Beaver, otter 
and gray wolf.) N. Y. Forest, Fish and Game Comm. Ann. Rep. 
1904-05-06, DD. 32, 254, 286-7, 505-6. Jd. B.. Lyon Coy, Albany. 
Palmer, T. S. 1922, Game as a national resource. U. S. Dept. Ag. 
Bul. 1049, 48 pp., illus. 
Richardson, C, D. 1910, Value of wild animals. Am. Breed. Mag. 
1(1):48-9. 
Sanderson, Wi. HE. 1928. Our debt to the fur Bearer, Nat. Mag. 
12(6):357-61, 397. Illus. 
Section of Fur Resources, 1959, A survey of the annual fur catch 
of the United States. U. S. Bur. Biol. Surv. BS=140. 19 pp. 
(Mimeographed. ) © 
Section of Fur Resources. 1940. The annual fur catch of the 
United States, U. S. Fish and Wildlife Serv. Wildlife Reatieenligiis 
21 ‘pp. "(Wifincographed. ) 
Simmons, P.. Lb, .1921.. Animal products: . thelr preparation, 
commercial uses and values, Hew York, 416 pp. 
Smith, J. R. 1926. Industrial and'‘conmerelal geography, pp. 572-3. 
Henry Holt & Co., New York, 
Spears, R. S, 1939. Social security in conservation, Pa. Game 
‘News 10(1):12, 28. 
Stebler, A. H. 1957. A fortune in predators. Mich. Cons. 
6(10):5-4. Illus. 
Storer, T. I. Y93l1. “arly trade ‘value of skins in Montana, Jour. 
Mammal, 12(1):'77-8. f 
TEYLOFe: We Fe 1913, Fur-bearing mammals: an unappreciated natural 
resource. SE Le Nie ie 37(952) 7485-7, : 
U. S. Department of the Interior, 1959, U. 5. Wildlife Bureau 
reports Nene cere fur animal supply and sumidrizes states! fur 
"take." “ Reledse, diily 16. ‘8 pp. (Mimeographed.) — 
Wade, D. 1959, Economic survey and general inventory of native. 
Pennsylvania fur-bearers. Pa, Game News 10(1)710. ITlus. 
Also: 1939. “4th N. Am. Wildlife Conf. Trans. , pp. 200-2. 
Walker, L. WY. 1930. Economic value of predatory: animals. Zool. 
Soc. San Diego Bul., TODO.) LO Die tLe us. 
