Abstract :
The Department of the Interior, through the Geological Survey, has just issued a report of the amount of developed water power in the United States as of January 1, 1926. This report shows that the capacity of water-wheels in plants of 100 h. p. or more on the first of this year was 11,176,596 h. p., an increase of 1,138,941 h. p., or about 11.5 per cent since March, 1925.
