204 CAVE AND CLIFF DWELLERS, 
place, and on ascertaining when he would 
reach it was, as my hearers will easily 
infer, somewhat astonished to find out 
that he expected to make it that night, 
and I was afterward informed that he 
had done so. 
Not a great many years ago the mail 
from Chihuahua to Batopilas was carried 
by a courier on his back, who made the 
distance over the Sierra Madre range, a 
good 250 miles, and return, or a total of 
500 miles, in six days. Here he rested 
one day and repeated his trip, his con¬ 
tract being for weekly service. Along¬ 
side of this the best records ever made in 
the many six days’ “go-as-you-please” 
contests that are heard of in the great 
cities of the United States sink into 
almost contemptible insignificance. I 
could give a dozen other instances, but 
