87 HOW 
TO WORK 
this basin as sewage, it flows out of the other as 
pure water. Chemical analyses and tests have 
proved this many times over, and we might 
take a hint from this at home to “raise our 
darkened windows and open wide our doors, to 
let the blessed sunshine in.” It is the best 
destroyer of disease and impurity yet discovered. 
The company’s acres along the line of the 
canal profited so much from this irrigation, 
that farmers soon began to purchase the irri- 
gating sewage water for use on their forage crop 
fields, and for root crops particularly. The 
solids are spread on the surface of the lands 
upon which the clear, purified water is to be used, 
and the results have been most satisfactory. 
San Antonio really makes a profit out of that 
which is costing other cities millions every year, 
and in doing this has shown us another way to 
work, in bringing into use all lands that are 
available in any way for intensive cultivation. 
Plenty of manure and thorough cultivation 
are almost a complete protection against drought. 
If you have plowed deep, manured thoroughly, 
added humus and maintained tillage, you 
can laugh at the drought that would once have 
spelled ruin for the farmer in any part of 
the country. You have been told this before 
in this very book, but that is no reason why it 
