los maize produced the following averages: 5.6, 1.8, 
0.32, and 17.8. These are so similar to those set forth 
above for the prehistoric Chilean cobs that we may con- 
clude, with some degree of confidence, that the two 
collections represent essentially the same race, Confite 
Iqueno. By the same token, we can assume that if the 
Chilean cobs had retained their kernels, the intact ears 
would have been similar in their general appearance to 
those of the Los Cerillos maize, illustrated by Grobman 
et al. in their figure 19. 
Polulo 
This race is represented among the oldest cobs by a 
single specimen which is so different from the remaining 
ones that it must be considered as that of a different 
race. This specimen is 3.4 cm. long, but it is probably 
not intact with respect to length, since it lacks a pedun- 
cle. Also, since it comprises only the rachis, the central 
stem of the cob, the floral bracts having been lost, its 
diameter/length is not comparable with other cobs in 
this collection. The kernel-row number is 10; the cu- 
pules are distinct, slightly longer than wide and are 
hairy; stumps of the rachillae are prominent. 
We might not have been able to identify this single 
specimen had not we found counterparts of it in a collec- 
tion from site RAnL 887-1. Cobs of that lot, illustrated 
in Plate XV, fig. B, were derived from the shallow fill 
within the foundation of an isolated house dating to the 
late prehispanic period. 
Anticipating a description of this lot, to be set forth 
later, we can say that of the 115 cobs of site 8387-1, 
thirty-five are of a very distinctive type. These have 
slender rachises and peduncles of about the same diame- 
ter as the rachises. The floral bracts that remain attached 
to the rachises are relatively long; both lower and upper 
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