110 BULLETIN OF THE UNITED STATES EISH COMMISSION. 



Details of IS drives on North Kookery, Bering Island, 1S9S, ahoiving sex and age of seals driven. 



Upon my arrival, in 1895, I impressed upon Mr. Grebuitski the desirability of 

 having such a census prepared, and sugge'^ted that Selivanof, the kossak in charge of 

 the rookery, be ordered to undertake tlie work. Mr. Grebuitski, fully aware of the 

 great importance of knowing exactly what classes were represented in each drive, at 

 once took up the suggestion and ordered Selivanof to make a detailed tally of each 

 drive according to the scheme I furnished. The drive on July 10 1 counted myself 

 conjointly with Selivanof, and the tally sheet is here produced to show how the work was 

 done and how much reliability can be jdaced upon it. The seals killed and those escap- 

 ing from eacii pod, as it was culled and slaughtered, were separately counted, Feoktist 

 Ivanof Korsakovski counting the dead ones, Selivanof and I those allowed to escape. 



Tully of drive taken July 19, 1S9S, North Kookery, Bering Islantl. 



The accuracy of the above tally is attested by the fact that the number of skins 

 taken in this drive was 545. Sometimes the killed ones of the previous pod were 

 lying so close to those being counted that it was difficult to ascertain the e.xact number, 

 in which case the smaller figure was noted. And so with the e.scaping ones. Selivanof 

 and I counted separately; if we diftered, and a recount was not practicable, we took 



