THE RETURN BY ANOTHER TRAIL. 359 
undulations. Since Batopilas came into 
the hands of Americans there has been 
a constant effort on their part to look 
for better grades and secure a simpler 
method of ingress and egress from their 
mountain mines, and they are continually 
broadening and improving the path. 
Still, at the best, they can never make 
anything but a narrow mountain trail in 
that country of crag and canon. The 
day will come when railways are built 
through that rich region, but until then 
the patient mule will be the only means 
of transportation. 
The first night on the Teboreachic 
was a most delightfully cool one after 
the long spell of warm weather we had 
experienced on the lower levels. It was 
preceded by a slight thunder shower, the 
first one of the season, but it warned us in 
