CONTENTS. 5 



Fuk-Seal Industry — Continued 

 Pribilof Islands — Continued. 

 Foxes — Continued. 



Methods employed, etc. — Continued. P&ge. 



Disposition of carcasses 94 



Breeding reserve 94 



Reindeer 95 



Shipments of fur-seal and fox skins from Pribilof Islands in 1920__ 95 



Sales of fur-seal skins 96 



Summary of fur-seal skins shipi^ed to Funsten Bros. & Co 99 



Fur-seal skins on hand December 31, 1920 100 



Sale of fox skins postponed 191 



Patrol of North Pacific Ocean and Bering Sea 101 



Sealing privileges accorded aborigines 103 



Japanese sealskins delivered to the United States 103 



Fur-Skal Census, Pribilof Islands. 1920 104 



Pups 104 



Cows 108 



Loss of cows on the i.slands 108 



Loss of cows at sea 110 



Branded animals 110 



Bulls 113 



Harem and idle bulls 113 



Average harom 115 



Los.ses of bulls and young males 116 



Complete census of fur seals as of August 10. 1920 120 



Natural-History Records of Pribilof Islands 122 



Bibliography 123 



Fur seals 123 



Foxes 125 



Birds 125 



Miscellaneous 126 



Investigation of the Salmon Fish?:rie8 of the Yukon River 128 



Outline of proposed investigations 128 



Itinerary 128 



Important species of salmon with data concerning runs 129 



Red or sockeye salmon 129 



Humpback salmon 130 



Coho salmon 130 



King salmon 131 



Chum or dog salmon 134 



Yukon delta, its principal channels, and routes mainly followed by 



salmon 138 



(Commercial fishery operations in Yukon delta in 1920 140 



Supply of dried siilmon prepared on Yukon River in 1920 143 



Comparison of 1920 with 1919 1 147 



To what extent was Yukon cannery responsible for 1919 shortage? — 148 



Effect of cannery in 1920 150 



General discussion ami recommendations 151 



