Prescott nodded.
"I see. The length of the ditch is——"
"Thirty-five miles and a fraction."
"What is the normal width and what amount of water does it carry?"
"Sixty-five feet and it carries six feet of water."
"What is the slope?"
"Two and a half feet per mile."
"How much water to the acre is applied in your State?"
Symes was showing some surprise. For a man who was not familiar with irrigation projects Prescott was asking decidedly pertinent questions, but Symes answered glibly—
"A cubic foot per second to each seventy acres."