104 
enough for tilling is utilized for crop production. It is a most 
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affording tens of thousands of acres of ae tillable land. Hund- 
yielding cane for long periods, some of them as much as forty 
years. 
At this point I made a most interesting observation, and 
the bottom of the v: alle ey. I was assure ed by the entlema: an : 
educated French ener that within ten years this eae 
placement has been perfectly gradual, so much so t that the life 
is located Espia. There ae no Ye here, it being merely a 
locality, bearing this name junction 
of the route from La Paz, via Chulimani, to Canyamina a 
Cochabamba, and the down-river route on the Bopi to 
eastern Andean region. This region is interesting because of 
the great extent of its cactus flora not an arid region, 
although very dry ing the dry season. It: tuses are 
peculiar. One o m is the very large one to which allusion 
has already been made, and which is very abundant. Another 
one is either a form of the former, or a very closely related species. 
