Prare XXI. A. Traje, wattle and daub sealed 
structures used to store maize at present in the 
tropical lowland area of the Balsas River Basin, 
Guerrero; the photograph shows the first steps in 
the construction of this type of structure. B. Taye, 
wattle and daub sealed structures; photograph 
showing the application of the daub on the inner 
walls; Balsas River Basin, Guerrero. Modern 
Period. C. Enramada, temporary structure used for 
maize storage over a large part of the tropical coast- 
al areas of Mexico where dry winter months pre- 
vail; near Petatlan, Guerrero. D. Enramada, va- 
riant form used at present near Veracruz City, 
Veracruz. (Photograph by Dr. P. C. Mangelsdorf. ) 
Pirate XXII. A. Temporary conical structure made 
of maize stalks and used for maize storage near 
Cholula, Puebla, during the later part of the 19th 
Century. (Reproduced from Starr 1899.) B. Ziri- 
cua, temporary structure made of maize stalks and 
used by the farmers of the Balsas River Basin, 
Guerrero for storage of maize. Modern Period. 
C. Cylindrical reed structure similar to the stricua 
and used at present for maize storage among the 
Amuzgo Indians of southeastern Guerrero. 
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