Bulletin A. M, N. H. 



Vol. XXXVT. Plate XXIX. 



Cauca Valley from San Antonio 



The Cauca Valley lies below and the Central Andes arise behind the clouds. Trail to Call in 



the foreground. Taken from the lower border of bushy vegetation near the San Antonio Pass. 



(Junction of Tropical and Subtropical Zones.) 



Cauca Valley from Mihaflores 



Note the level valley floor. The Western Andes- appear in the background. 



(.lunction of Tropical and Subtropical Zones.) 



