ALASKA FISHERY AND FUR-SEAL INDUSTRIES, 1920. 121 
6-year-old males, estimated: 
Davean-Old MAlES ASA ALO MOTO 2 5, 282 
5-year-old males killed fall of 1919_._-___________________- ST 
5-yvear-oldumales, endor 1910 2sss<- esis 3 ee 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... --_-=-2—--2 2-2 se -u_+_ 43 
6-year-old males, Aug, 10, 1920+-.-=—...-=..-=~ peep nes 4, 153 
Surplus bulls (7-year-olds and over), estimated: 
S-venr-old males Aus. 10) Ole 2 ets wee ao 8, 991 
6-year-old males killed fall of 1919_-__-________=_---_-_-- 300 
G-year-old, males; end. of NOG s. = 2 2 2 2 ee eee 8, 691 
20 per cent deducted for natural mortality--_---------~- 1, 738 
7-year-old males, beginning of 1920_--_______________ 6, 953 
SULDIUS DULG Aurea Os wLOi Oe Ses oe ee ese 9, 619 
SULpLUS DUIS Killed TaUNOr TOU so = We or Ne So 980 
SUDppLUSIOUUS end Onell Oe = tee Se 8, 689 
30 per cent deducted for natural mortality_--__-___________ 2, 592 
Remainine; surplus bulls’ for AlQ20* =... se ee 6, 047 
SRECON Sa US Ol) PLO mee eer eet ee ee ee ee 7,397 
30 per cent deducted for natural mortality_______________ 2, 219 
NOLO bulls remaining rin, 192022 ee 5,178 
Perea DULES Sin tO202 et ls AT es ol a eee 5, 227 
719193 HullS reniaginine deducted= 2e2e=. 64 Sse weary is 5,178 
Increment of new bulls in 1920_____________________ 49 
7-year-old males computed for 1920____-______---________ 6, 953 
Surplusipulls computed, for 1920 2-2 a ae 6, 047 
Total theoretical surplus bull stock for 1920_________ 13, 000 
7-year-olds and over killed in 1920__-_-_-_---..__-=_______ 721 
MOLALSUEPLUSt MeL O20) 2 ae: EEA o LES Se a A 12, 279 
Increment of new breeding bulls in 1920, deducted________ 49 
SULDIUS DUIS LOL) See fe ee ewe see See 12, 230 
50 per cent deducted for abnornral losses due to excessive 
mumber"Ot pulses te eee i ae ee ee ee 6, 115 
Surplus, bulls Aug: TOS 1O2() ste sia Sale te a ee ae (ope ba ss 
RECAPITULATION. 
EU See a Ss es ee A ees eek et a ee 167, 527 
EV ees ee ee oP ts Be ata ee Pa a el eee ee 167, 527 
ETRE ULES menos: Dees NE EE oe A ee Sa eee 4, 066 
CUE ays Sees eee ee ek cy wnat eee rh ee Es A oh eae 1, 161 
ieairliie erent ales eal a ies ee | Bee Bee oh eed eS ee te 51, O81 
MWeanliin sumalles emer 8: 6.2 ee ee ee 51, O74 
ey rT Ol GTO I Ml OSs eet ke a I a a re 39, 480 
PVCU Ole IAL CS ee ee A ee pt, ote Nie tas ME kee ces 39, 111 
Sa VCo Old wine Les) $507 SE Serre = be a ee a ee ee a 10, 749 
AYE VC ONE OL GIMPELISEL CS ppm tartare 2 SS ee Se 5, 667 
geri esayole site Keys\ = Soe 1p dee ee ie eR ee RE he eee ae ee ee 5, OOT 
G-VenT-Ol dein ales =e pee meet errs 22. es A ee ee ON SL eS 4,153 
Surplus bulls; Gualessivvears old and over) =_42 3222 *--2 eo ss 6,115 
