ROBERT A. THOMPSON-STORM-WATER IRRIGATION. 
79 
A rainfall of one and one-fourth inches, collected from the entire 
catchment basin, will fill the reservoir and irrigate 7000 acres. More 
attention has also been given this question by the State Geological Sur¬ 
vey, and a number of reservoir sites located in Trans-Pecos Texas and 
in the Colorado coal field of Central Texas. One of the latter has been 
recently selected by the Brown County Irrigation Company as a locus 
for their reservoir and dam. Also, another site located by them on the 
San Saba river, above San Saba, has been selected by an irrigation com¬ 
pany, who have made complete surveys and are expected to begin opera¬ 
tions soon. 
The prime costs of irrigation works are so great that capitalists hesitate 
investing money in them until it is assured that they will prove a finan¬ 
cial success, and also that their interests will be properly protected by 
law. Some of the largest enterprises of this kind in India paid but a 
very small dividend on the capital invested till a number of years after 
their construction. 
