it seems best to regard this lack of detail as a simplifica- 
tion leading to economy of effort on the part of the artist. 
The color and position of the circle on the front wall sug- 
gest a small wooden door similar to the one found in 
log-cabin structures common among the Mixtee Indians 
today. 
Anderson and Barlow (1943) made a special study of 
these figures, and their findings may be summarized as 
follows: the figures represent large wooden granaries 
with acapacity of four or five thousand ‘‘fanegas’’ (about 
10,000 bushels); these ‘‘troxes’’ were used as units of 
measure of the yearly tribute required of the various 
provinces in terms of maize, beans, chia and quautli; 
these granaries were built at strategic localities through- 
out the Valley of Mexico and into Oaxaca as far as 
Oaxaca City. 
Finally, at a late date Francisco Saverio Clavijero 
(1780) gives a full description of this type of granary 
and his description is included since it has been repeated 
by Prescott (1843), Brasseur de Bourbourg (1858) and 
Bancroft (1875). 
‘*Eras, y Graneros. Tanian eras para deshojar, y desgranar las 
mazoreas, y graneros para guardar el grano. Estos eran cuadrados, y 
por lo comun, de madera. Servianse para esto del qjamet/, arbol al- 
tisimo, de pocas ramas, y estas mui delgadas, de corteza tenue, y lisa, 
y de contestura flexible, pero dificil de romperse, y rajarse. Formaban 
el granero, disponiendo en cuadro, unos sobre otros, los troncos re- 
dondos e iguales de ojametl, sin otra trabazon que una especie de hor- 
quilla en su estremidad, para ajustarlos, y unirlos tan perfectamente, 
que no dejasen paso a la luz. Cuando llegaban a cierta altura, los cu- 
brian con otra trabazon de pinos, y sobre ella construian el techo, para 
defender el grano de la lluvia. Estos graneros no tenian otra salida 
que dos solas ventanas, una pequefia en la parte inferior, y otra grande 
en la superior. Los habia tan espaciosos que podian contener cinco 
mil, seis mil, y aun mas fanegas de maiz.”’ 
He goes on to say that some of these structures were 
[162 J 
