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One of world's largest irrigation projects commanding 6,500,000 a. of desert land located on River Indus in Sind, India; dams Indus with 4600 ft barrier; draglines used extensively to speed excavation and cut cost; total length of main-line canals and branches 1600 mi; distributaries, 4622 miles; final feeders to fields may amount to 50,000 mi; 46 Ruston-Bucyrus draglines handle 120,000,000 cu yd of excavation; canals 180 to 380 ft wide and 4 to 20 ft deep; sandstorms, heat, and lack of transportation, water, fresh food and comfortable quarters; bonus system results in increased production; conditions governing costs; output figures and working costs. (See also - n 10 Mar 5 1932 p 192-4, n 11 Mar 12 p 211-3)