Furthermore, if additional archaeological and botanical 
work bears out the reconstruction of the history of Maiz 
de Ocho here outlined, and we think that it may, the 
solution of many local archaeological problems will be 
greatly facilitated, and an understanding of the original 
source of Northern Flint germplasm should advance the 
field of hybrid maize breeding. 
ACKNOWLEDGMENTS 
Sincere appreciation is expressed to Dr. Paul C. 
Mangelsdorf, Director of the Botanical Museum, for 
his suggestions and encouragement during the course of 
the investigation; to Dr. J. O. Brew, Director of the 
Peabody Museum, for permission to examine the various 
collections of maize, including previously unreported ma- 
terial; to Drs. Mangelsdorf, Brew and R. S. MacNeish 
for their critical reading of the manuscript; to Dr. Vol- 
ney H. Jones of the Museum of Anthropology at the 
University of Michigan for providing us with critical 
maize cobs from the Davis Site in Texas and the Durango 
Site in Colorado; to Dr. Charles J. Bareis of the Depart- 
ment of Anthropology, University of Illinois for provid- 
ing material from the Cahokia area in Illinois which was 
examined in Urbana; and to Dr. E. J. Wellhausen of the 
Rockefeller Foundation for supplying certain critical 
ears of Mexican races of maize for comparison with our 
archaeological specimens. 
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