840. Edge of the forest at 
jthe laboratory. Barro Colorado, 
1C. Z. October 10, 1940. 
.V ' *■ 
; 1 . / 
. 
841. Gatun Lake from 
Laboratory, Barro Colorado 
Island, C.Z. 
October 10, 1940. 
842, View from the Laboratory, 
Barro Colorado, C.Z. 
October 10, 1940. 
i!l f. 
1 
; I 
.vV./.i 
