COMMERCIAL AND POLITICAL ASPECTS 



search work in South Georgia is reveaHng data as to 

 breeding times, rate of growth, food of whales, and 

 the chemical composition of the innumerable samples 

 of sea water. Already Mr. Mathews' work here shows 

 that the three South Georgia whales live exclusively 



Fig. 33. — Map of South Georgia showing distribu- 

 tion OF WHALE FOOD. 



Main currents indicated. (After Hardy.) 



on the shrimp, Euphansia siiperha. A good deal of 

 whale-marking with discs is also being done to dis- 

 cover the migrations of the whale. 



Mr. Hardy gives a most interesting map of South 

 Georgia which showed that almost all the Eiiphausia 

 are concentrated on the northeast side of South 



225 



