
and the percent killed on St. Paul were shown in table 4. 
table 7. 
Table 6,--Number of group-III male seals killed annually on the Pribilofs, 
Comparison of ig a data with estimates based on 
Year 
1918 
1919 
1920 
1921 
1922 
1923 
1924 
1925 
1926 
1927 
1928 
1929 
1930 
1931 
1932 

exclusive of seals taken by natives in the fall for food. 
24, August 1912 to 24 August 1917, commercial sealing was prohibited; 
Theoretical esti- 
Since the group-III kill is a composite of several age groups, 
it is important in a population study to evaluate the kill by age groups. 
The age composition of annual kills in eight postwar years are shown in 
This table is based on the estimates of age composition obtained 
from tooth-sample age determinations, discussed in appendix D. 
1918-51. 
fitting a logistic curve. 
[Males measuring 41 to 45 inches in length taken during the 
regular sealing season ending not later than 10 August, and 
food killings were abandoned on 18 November 1929. 
mates are based on fitting a logistic curve. ] 
Enpirical Empirical 
(counted) Theoretical Year (counted) 
16,454 = ------ 1933 52,747 
15,042 eee 1934 51,935 
18,831 oF 1935 54,890 
195630, (Genstes 1936 19, 566 
ae: ren 1937 50,800 
12,992 ---~--+ 1938 54,140 
16,083 15,987 1939 56,520 
17,612 19, 283 1940 59,945 
19,777 22,911 1941 461036 
22,699 26,782 1942 114 
28, 539 30,777 1943 68,189 
38,079 34,760 1944 43, 267 
42, 409 38,598 1945 71, 286 
17,767 12,174 1946 58,780 
47,625 15,406 1947 49,911 
1948 64,784 
1949 64, 309 
1950 56,123 
1951 535904 
Total ........ 1,428,838 
1/ Islands under military occupation 
-16- 
From 
Theoretical 
48,247 
50,682 
52,727 
54,414 
55,781, 
56,885 
57,769 
58,450 
58,986 
59, 420 
59,745 
60,006 
60,201 
60,352 
60,472 
60, 562 
60,638 
60,679 
60,700 
