Fig. 39. 



Fig. 40. 



Fig. 39 — Huichihua, near Chuquibambilla, a typical mountain village, in the 

 valleys of the Central Ranges, Peruvian Andes. 



Fig. 40 — Potato field above Vilcabamba at 12,000 feet (3,660 m.). The natural 

 sod is broken by a steel-shod stick and the seed potato dropped into a mere puncture. 

 It receives no attention thereafter until harvest time. 



