FEE FACE ix 



been taken for the purpose of ascertaining the number and distribution 

 of the organisms therein. So far the planktonts in about half of these 

 samples have been enumerated ; when the counting is completed, a bul- 

 letin dealing with this phase of the work in greater detail will be pre- 

 pared. 



The United States Bureau of Fisheries granted financial assistance 

 toward this investigation and grateful acknowledgment is extended for 

 this valuable aid. A more thorough study of the various problems 

 was made possible through this assistance. The results are published 

 with the permission of the Commissioner of Fisheries. 



