a62 JANOS TO CORRELITOS, 
design, as well as for the purpose of comparing them 
with the pottery found at the Gila and the Salinas. 
They will also serve for comparison with the pottery 
of the Moquis, Zunis, and other Pueblo Indians, as 
well as with the ornaments made by the present Pimos 
and Coco-Maricopas. When so little remains of a 
people, the smallest fragments of their works of art 
become important. It is for this reason I have given 
so many specimens of their ornaments. 
On the summit of the highest mountain south-west 
of the ruins, and about ten miles distant, there was 
pointed out to me an ancient fortress of stone, from 
which the whole country for a vast extent can be 
viewed. Itis attributed to the same people who 
erected the ‘‘Casas Grandes,” and was doubtless in- 
tended as a look-out. This fortress can be discerned 
with the naked eye, and on looking at it through my 
spy-glass, it showed quite distinctly. I did not visit 
it, as it would have required a day, which time I could 
not spare. 
We were told that this building was a stone for- 
tress of two or three stories, with a very solid founda- 
tion. I think that the description of Clavigero refers 
both to the adobe edifices I have described and to 
this fortress, and that the worthy historian was not 
aware of their being separate structures.* 
* This edifice is constructed on the plan of those of New Mexico, 
that is, consisting of three floors, with a terrace above them, and with- 
out any entrance to the lower floor. The doorway is in the second 
story, so that a scaling ladder is necessary; and the inhabitants of New 
Mexico build in this manner, in order to be less exposed to the attacks 
of their enemies. No doubt the Aztecs had the same motives for raising 
