EXPLANATION OF THE ILLUSTRATION 
Piare VII. A. Grinding flour corn for chicha near 
Balas, Rio Beni, Bolivia. B. Germinating corn 
grains for chicha, near Reyes, Bolivia. C. Airampu 
(Opuntia sulphurea). The seeds are used to dye 
chicha, near Cochabamba. D. Pounding grains of 
white flint corn for somé or tuhuré, Rurrenabaque, 
Bolivia. 
