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Books Books 1 - 2 of 2 on ... narrow, they average 2000 acres each, and where it is wide 20,000 acres ; while....  Take our survey New!
" ... narrow, they average 2000 acres each, and where it is wide 20,000 acres ; while some of the tail basins are 40,000 acres in extent. Each canal has about seven or eight basins depending on it, of which the last is always the largest. There are masonry... "
The Nile in 1904 - Page 68
by Sir William Willcocks, Hugh John Llewellyn Beadnell - 1904 - 225 pages
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Egyptian Irrigation, Volume 1

Sir William Willcocks, James Ireland Craig - Irrigation - 1913 - 883 pages
...the last is always the largest. There are masonry regulators at the canal heads, at each crossing of the cross banks, and at the tail escapes into the...information. Some of the canals, like the Sohagia, are veritable rivers, discharging 450 cubic metres per second ; but a good average canal discharges...
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Use of Water in Irrigation

Samuel Fortier - Irrigation - 1916 - 325 pages
...the last is always the largest. There are masonry regulators at the canal heads, at each crossing of the cross banks and at the tail escapes into the river....In the more perfect basins, the canals and escapes syghon under one another and overlap and supply each other's deficiencies, so as to meet the requirements...
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