100 



ALASKA FISHERIES AND FUR INDUSTRIES IN 1917. 



In 1017 the count was started on August 2, the first day it was 

 practica})lo to enter the rookeries without danger to human life, and 

 by the Dth so many pups had taken to the water that further counting 

 was omitted. Kesults which would have been obtained thereafter 

 would ha^'e had such a percentage of error due to the swimming pups 

 that they would have been much less satisfactory than actual counts 

 earlier in the season. 



In aU, eight of the St. Paul and three of the St. George rookeries 

 were counted entirely and the dead on two other rookeries on St. 

 Paul Island were carefully counted. The figures give a good basis 

 for ascertaining the average harem on those rookeries which were 

 not counted, and have been so used. Results are shown in the tables 

 following : 



Distribution of Pups at the Pribilof Islands in 1917. 



) Estimated. 



