January 19, 1950. 
Brigadier General R. Beam, 
Commanding General Caribbean Air Command, 
Albrook Air Force Base, 
Canal Zone. 
Dear General Beam: 
I wish to acknowledge with much appreciation your 
kind communication of 10 January, relative to my coming 
trip to Panama. Your cooperation will be most valuable and 
helpful in the scientific work that I have ahead of me. 
It is a pleasure to accept your invitation to stay at 
the Officers’ Club, as I have many pleasant recollections of my 
previous visits. I will have with me Mr. W. M. Perrygo, who 
has been my companion on previous trips as assistant so that 
we can be quartered together. 
You will recall that the Smithsonian Institution now 
operates the Laboratory on Barro Colorado Island in Gatun 
Lake. My first duty on arrival will be an inspection visit to 
this Laboratory where I expect to spend about two days. 
According to present plans I will cross from Miami 
by Pan American Airways the night of February 5. As arrival 
is late I will make reservation for that night at the Tivoli Hotel, 
and will be in touch with Lt. Col. Mervin E. Potter of your 
staff on the following day, Monday, February 6. As indicated 
I will spend two days at Barro Colorado Island and will greatly 
appreciate it if reservation may be made for me and Mr. Perrygo 
at the Officers’ Club arriving in the late afternoon of Wednesday, 
February 8. 
As we have our own contacts in Panama Customs 
there will be no necessity for you or Col. Potter to make any 
