February 28, 1946. 
, lashington, U.S .*. 
Jr. a. Jetmore, 
Secretary, Smithsonian Institution. 
Dear Dr. Jfetmore: 
I 
On or about March 4, 1946 you will proceed from Washington 
D.C., to Florida and from there to Panama on official work for the 
Smithsonian Institution. 
It is expected that you will visit Barro Colorado Island 
laboratory in Gutun Lake, known now as the Canal lone Biological area 
for which you are Executive Officer, and that following this 4 ou will 
have opportunity to go to the San Jose I reject to check on observations 
that you made there two years ago. 
Following this you will proceed to points in Darien where you 
will be occupied in making field observations and obtain collections of 
birds and other natural history material for the U. S. National Museum. 
Mr. hatson M, Perrygo of the U. S. National Museum is accompanying you 
as assistant. 
You will be allowed expenses for yourself and for Mr. Perrygo 
including transportation by air wherever required and by other means as 
necessary, actual expenses for subsistence, hire of special conveyance 
as required, hire of assistants in the field with their subsistence if 
necessary, purchase of specimens, material and such other miscellaneous 
expenditures as may be required, payable from the funds of the Smithsonian 
Institution. 
It is contemplated that this work will cover approximately two 
months when you will return to your official station in Washington. 
3 l, air Corps 
Very truly yours, 
/s/ J. 3. Graf, 
/t/ J. W. Graf, 
Acting Secretary. 
