- 154 -TABLE No. 2.—Comparative Costs of Irrigation. PLANT. Irrigation Period. Total Hours run. Average Delivery of Water M³ per hour. Total Water delivered in Cubic Metres. Average Lift in Feet. Average Water Horse-power. Duty of Water per Feddan in Cubic Metres per Hour. Average Feddans Irrigated per Hour. No. 1 December, 1913, to May, 1914. ... ... 1,631 381 621,411 22 0 9-33 1,320 470 809 No. 2 July, 1914, to March, 1915. ... ... 2,280 1,379 3,144,120 18 3 28-0 6,520 482 2,860 No. 3 April, 1914, to August, 1915. ... ... 1,048 503 527,144 26 6 14-2 640 823 -610 The Duty of Water is calculated from the discharge over weir sill. With reference to Plant No. 3, installed at Tuti Island, an explanation of the low duty of water is afforded in a following report. A great reduction has since been effected. PLANT. Cost of Plant. Cost of Fuel Consumed. Cost of Lubricating Oil used. Cost of Labour and Sundries. Average Cost per W.H.P. per Hour. Average Cost per 1000 M³ Wtr. Water. Cost per Feddan Irrigated. Cost per Feddan Irrigated plus 10% Depreciation, plus 10% and Interest. Milliemes. Milliemes. Milliemes. Milliemes. No. 1 £E. 293,700 £E. 31,920 30-1 737 347 125-7 299 144 ... 1,645 ... 576,875 19.017 12-8 260 293 No. 2 ... ... ... 205,565 31.709 150,000 26-0 734 No. 3 ... ... ... The item “Cost of Labour and Sundries" includes wages of engineers, sheikh of cultivation, water watchmen, boatmen, stokers, greasers, wood cutters, ghaffirs, minor repairs to plant, and extra labour employed for repairs to main canals.