artists and the pictorial technique shows no Spanish in- 
fluence. It is believed to be a copy of an older Codex 
made in 1511 to record Moctezuma’s tribute list. 
Throughout this document, the measure of the tribute 
to be paid in terms of maize, beans, chia (Salvia hispan- 
ica) and quautli (4 maranthus caudatus), is indicated as 
a large wooden granary of the log-cabin type. 
Other authors writing at a much later period suggest 
that the following two types of granaries were also used 
by the Aztec rulers: large cask-like containers made of 
wattle and clay daub and kept within the rooms of the 
palace (Torquemada 1723); and cuezcomatls (vasiform 
granaries) according to Fray Alonso de la Mota y Esco- 
bar (Simpson 1984). 
The following four types of imperial granaries may 
therefore be recognized: 
1. Rooms within the palace. This type of storage is 
described by Diaz del Castillo (1568) and Sahagun (1529- 
1590). 
2. Log-cabin granary (Pl. XIV, A). In 18 of the 
plates of the Codex Mendoza (Kingsborough 1831-1848) 
a total of forty of these figures are illustrated, and in all 
cases the Spanish text refers to them as ‘‘troxes.’’ All 
are strikingly similar and seem to represent a cubical 
structure consisting of low corner posts, a plank floor, 
log or board walls interrupted at about the middle by a 
circle, and a plank roof. The representations of various 
types of grains are drawn above the figures of these 
structures, and it is evident, from the rest of the infor- 
mation given, that these granaries were used as measures 
of the yearly tribute which had to be given to the Aztec 
ruler. There is no indication regarding the manner in 
which the walls were held together at the corners, and 
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