January 20, 1948. 
TO WHOM IT MAY CONCERN: 
This will serve to introduce Mr, Watson 
M. Perrygo, ol the United States National Museum, who 
is traveling in Panama on official business for the 
Smithsonian Institution* 
Any aid that may be given to Mr, Perrygo 
in this work will be deeply appreciated. 
A. Wetmore, 
Secretary. 
(SEAL,) 
