ALASKA FISHEKY A5^D FUR-SEAL INDUSTRIES, 1920. 121 



6-vear-olcl males, estimated : 



5-year-old males, Aug. 10. 1919 5, 282 



5-year-old males killed fall of 1919 37 



5-year-old males, eml of 1919 5,245 



20 per cent deducted for natural mortality 1.049 



6-year-old males, beginning of 1920 4, 196 



6-year-old males killed in 1920 43 



6-year-old males, Aug. 10, 1920 4, 153 



Surplus bulls (7-year-olds and over), estimated: 



6-vear-old males, Aug. 10, 1919 S, 991 



6-year-old males killed fall of 1919 300 



e-year-old males, end of 1919 8, 691 



20 per cent deducted for natural mortality 1, 738 



7-year-old males, beginning of 1920 6, 953 



Surplus bulls, Aug. 10. 1919 9,619 



Surplus bulls killed fall of 1919 980 



Surplus bulls, end of 1919 8, 639 



30 per cent deducted for natural mortality 2, 592 



Remaining surplus bulls for 1920 6, 047 



Breeding bulls of 1919 7,397 



30 per cent deducted for natural mortality 2, 219 



1919 bulls remaining in 1920 5, 178 



Breeding bulls in 1920 5, 227 



1919 bulls remaining, deducted 5, 178 



Increment of new bulls in 1920 49 



7-year-old males computed for 1920 G, U~^:i 



Surplus bulls computed for 1920 G. 047 



Total theoretical surplus bull stock for 1920 13,000 



7-year-olds and over killed in 1920 721 



Total surplus in 1920 12, 279 



Increment of new breeding bulls in 1920, deducted 49 



Surplus bulls in 1920 12, 230 



50 per cent deducted for abnormal losses due to excessive 

 number of bulls 6, 115 



Surplus bulls, Aug. 10, 1920 6, 115 



RECAPITULATION . 



Pups 167,527 



< 'ows 167, 527 



Harem bulls 4, 0G6 



Idle bulls 1, 161 



Yearling females 51, 081 



Yearling males 51, 074 



2-.vear-old females 39, 480 



2-year-old males 39, 111 



3-year-old males 10, 749 



4-yf'ar-old males 5, 6(57 



5-year-ol(i males 5, 007 



6-year-old males 4, 153 



Surplus bulls (males 7 years old and over) 6, 115 



Total 552,718 



