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SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 78 



Pueblo Bonito was occupied contemporaneously by two distinct 

 groups of prehistoric agriculturists. The explorations of the preced- 

 ing four summers had established this fact beyond question. Their 

 dwellings, their ceremonial chambers, their cultural remains were 

 alike divisible into two classes. One of these was early ; the other, 

 late. And yet, throughout a considerable period the two were co- 

 existent. As the evidence accumulated with each successive ex- 

 pedition it became the more certain that Pueblo Bonito, as it stood 



Fig. 84. — From the north rim uf Chacu Canyon one looked down upon a 

 veritable maze of foundation walls that emerged from beneath the outer 

 rooms of Pueblo Bonito and continued eastward more than 500 feet. ( Photo- 

 graph by O. C. Havens. Courtesy of the National Geographic Society.) 



at the time of its abandonment, represented the individual and yet 

 cooperative efforts of these two distinct peoples. Their clan organ- 

 izations were obviously similar ; their daily activities were probably 

 identical ; the utensils they used daily in their several households, 

 while exhibiting no marked difference to the untrained eye, showed 

 to the archeologist dissimilarities that could only have resulted from 

 the industry of separate groups, each trained to its own mode 

 of thought and self expression. The researches of the expedition 

 during 1925 fixed beyond reasonable conjecture the truth of these 

 earlier deductions. 



