316 cave and cliff dwellers. 
mining district in America, and probably 
in the world, both in a present and pro¬ 
spective sense. From within that circle 
comes a little over one-fourth the bullion 
of the whole of Mexico, although this 
area is insignificant compared with all the 
territory of that celebrated republic. 
In 1864 a report of the mines of Mex¬ 
ico was expressly made for Napoleon III. 
by Dr. Roger Dubois, the French consul. 
He said as follows of those of Western 
Chihuahua : “ Of all the States of the 
Mexican Republic, Chihuahua is, without 
contradiction, the richest in minerals, and 
we count no less than three thousand dif¬ 
ferent leads, the greater part of which 
are silver.” Probably three or four times 
that number could be added to Dr. Du¬ 
bois’ estimate of just a quarter of a cen¬ 
tury ago to bring it up to the present 
