December 29, 1943* 
Brig. Gen. B. F. Sullen©, 
Office of the Chief Chemical warfare Service, 
Boom 2310, liar Department Annex No. 1, 
Gravelly Point, Virginia. 
Dear General RuHene: 
You have been kind enough to suggest that 
1 may take with m to Panama an assistant to aid .in the 
biological investigations proposed. 
In accordance with this 1 m planning to 
have with me Dr. Joseph P. E. Morrison, of the United States 
National Museum, who will help mo in part of the work I plan 
and also will carry on some investigations in other branches 
of biology, thus giving better coverage of the subject. 
Dr. Morrison, needless to say, is a native 
bom American and loyal to this country in every way. He has 
been a member of our staff since August 2, 1934, and Is a man 
in whom we have the fullest confidence. 
Sincerely yours. 
A. iletmore, 
Assistant Secretary. 
Ip 
