INVESTIGATION OF THE FUR-SEAL INDUSTRY OF ALASKA. 75 



Here is what I published in 1872-1874 relative to the seal unit of space, and it is 

 clear enough to men who have reasoned to the line with me on the ground itself; to 

 men like Capt. Maynard, United States Navy, 1874, and William Kapus, general man- 

 ager of the lessees in 1872-73, and all of their official associates who were with them 

 at that time: 



-•Rookery space occupied by single seals. — When the adult males and females, 15 or 

 20 of the latter to every one of the former, have arrived upon the rookery, I think 



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an area a little less than 2 feet square for each female may be considered as the super- 

 ficial space required by each animal with regard to its size and in obedience to its 

 habits; and this limit may safely be said to be over the mark. Now, every female 

 or cow on this 2 feet square of space doubles herself by bringing forth her young, 

 and in a few days or a week, perhaps, after its birth the cow takes to the water to 



