LITERATURE CITED 
BARTHOLOMEW, G. A., JR. 
1953. Reproductive behavior of the Alaska fur seal, Callorhinus 
ursinus. Jour. Mamm., vol. 34, No. 4, pp. 417-436. 
CHAPMAN, D. G. 
1948. <A mathematical study of confidence limits of salmon popula- 
tions calculated from sample tag ratios. International Pacific 
Salmon Fisheries Comm., Bull. No. 2, pp. 69-85. 
CHAPMAN, D. G., and C. 0. JUNGE, JR. 
1954. Estimates of the size of a stratafied population. In press. 
CLARK, G. A. 
1912. [First census of the fur seal herd]. See U. S. Bureau of 
Fisheries, 1912, p. 97-98. 
DARLING, F. F. 
1951. Problems of conservation in Great Britain as illustrated by 
the status of the red deer (Cervus elapims) and the Atlantic. seal 
(Halichoerus gryphus). Proceedings United Nations Scientific Confer- 
ence on the Conservation and Utilization of Resources, 7: 250-252. 
ELLIOTT, H. W. 
1881. The seal-islands of Alaska. U. S. Dept. Interior, Tenth Census, 
sect. 9, monogr. A, pp. 1-176 and maps. 
ENDERS, ROBERT K., 0. P. PEARSON, and A. K. PEARSON 
1946. Certain aspects of reproduction in the fur seal. 
Anatomical Record, vol. 94, No. 2, pp. 213-228. 
FISHER, H. D. 
1952. Harp seals of the northwest Atlantic. Fisheries Research 
Board of Canada, Atlantic Biological Station, General Series 
Circular No. 20, 4 pp. 
FRASER, A. 
1911. In Hearings ...... to investigate the fur-seal industry in 
Alaska. U. S. Congress, Hearing No. 1 on H. R. 73, 33 pp. 
HALD, A. 
1952. Statistical theory with engineering applications. John Wiley 
& Sons, New York, pp. 174-8. 
HANNA, G. D. 
1915-1920. [Annual census of the fur seal herd]. Sse U. S. Bureau of 
Fisheries. 
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