This chart has been compiled from posi- 

 tions, ships runs and other information 

 obtained from old sealers, Revenue Cut- 

 ter Service reports. Coast Guard Cutter 

 reports, etc. The Japanese and Russian 

 seal movement lines were prepared by Cap- 

 tain Bissett an old sealer, who spent con- 

 siderable time in those waters, while 

 those of the American seals were plotted 

 by Commander F. A. Zeusler from the data 

 referred to above. 



