﻿NO. 



SMITHSONIAN EXPLORATIONS, I922 



71 



Fig. 70. — Arid valley of the Dagua River, Colombia. The transition from 

 a luxuriant rain-forest to this dry "pocket" is very abrupt. (Photograph 

 by T. E. Hazen.) 



Fig. 71. — View to the north from La Cumbre, in the Western Cordillera, 

 Colombia. The wooded valleys are filled with orchids. (Photograph by 

 T. E. Hazen.) 



