Mr. Paul Engstrum 
August 3, 1950 
The only suggestion I have relative to it would be 
some modification under which the spray would operate continuously 
when directed downward, without necessity of tipping it up at a 
sharp angle regularly to fill some inner chamber with fluid to 
be expelled as vapor. 
I enclose herewith two photographs taken at a place 
known as Ch&rco del Toro on the Rio Maje, a base camp used 
during studies in an interior mountain range known as the Serranxa 
de Maje. 
May I explain that it is only recently that my photographs 
have been available and that since return from Panama I have been 
absent in Europe on business matters. This has delayed my 
report until the present time. 
With thanks for your attention and cooperation, I am 
Very sincerely yours. 
A. Wetmore, 
Secretary. 
hs 
Enclosures 
