Smithsonian Report, 1918. — Cook. 



Plate I. 



Fig. I. — The Taclla or Peruvian Foot Plow and the Method of Hold- 

 ing and Using It. 



From the National Geographic Magazine. 



3?&J$&&£8®m 



Fig. 2. — Fall-Plowed Field at the Upper Limit of Cultivation, About 

 14,000 Feet. Pass of La Raya, Southern Peru. 



