This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1894 Excerpt: ...of section of stream in square inches. VJ W3 Then foot-lbs. per second =----X W = 0-082697--; 644 A2 W3 or foot-lbs. per mutute = 4-96172--. A2 W3 Therefore the IIP. of jet was nearly „„„--. J J 665 A2 It was only necessary therefore to catch and weigh the water which issued in 5 or 10 minutes from a suitable nozzle and estimate the rate of discharge. That and the area of the jet were all the data required. If the nozzle was properly formed, there should be no perceptible contraction after the jet left it. Where there was a vena contractu, the nozzle might be considered as not completely filled by the jet, and the formula would give too low a result unless the section of the stream was measured at its narrowest part. If desired, the constants could readily be corrected for...