Most of the contents of this bulletin have been prepared jointly 

 by Senior Physical Oceanographer Olav Mosby and Lieut. Comdr. 

 N. G. Ricketts. The former is, in general, responsible for parts 

 dealing with events prior to June 12, 1931, and the latter for events 

 occurring subsequently. 



The United States Coast Guard sent Lieut. Comdr. Edward H. 

 Smith, a former ice observation officer of the international ice patrol, 

 on the polar trip of the Graj Zeppelin that was made in 1931. The 

 final part of this bulletin consists of an account of this polar flight 

 written by Lieut. Comdr. Edward H. Smith. 



