Ebook Rivers and Canals the Flow, Control, and Improvement

Perennial Canals, drawing supplies from Rivers with a fair constant Dis charge. Two classes of Perennial Canals. Upper and Deltaic. Upper Perennial Canal: — Works required; considerations a?'ecting Design of Works; head-works, Weir across River. Sluices in Weir, Regulator at Head of Canal. Irrigation and Navigation combined, con?icting Interests. Perennial Canals in India: Western. And Eastern Jumna; Agra; Sirhind; Bari Doab; Sone; Gauges, and Lower Ganges. Canals in Northern Italy; supply derived from Tributaries of River Po; Pied mont Canals, extent Caluso, Ivrea, Cigliano, Cavour Canal direct from the Po, description Lombardy Canals, extent, Naviglio Grande, Muzza. Canals in South of France supply from River Durance; Bouches du Rh6ne Canals, Crapponne. Alpines, Marseilles for water-supply and irrigation; Verdon, dificulties, siphons; Vaucluse Canals. St. Julien, Cabedan vieux and neuf; Carpentru. Canals in Spain: commenced by the Moors, Jucar, from Rivers Segura and Douro, Aragon, Henares, Esla. Canals in the United States: recent works; F resno. And Calloway, in California; Del N orte, and High Line, in Colorado; Arizona; Bear River, in Utah; Idaho; Turlock in California. Remarks on Upper Perennial Canals. Cost of several of the canals described. Deltaie Perennial Canals -situation; Head-works; small uniform F all of Canals; Protection by Embankments from Inundation, disadvantages. Deltaic Canals in India; Orissa, Godavery, Kistna, and Cauvery; Extent, Cost, and Revenue. Canals in Lower Egypt, substituted for Basin Inigation, Object, Disadvantages; Rosetta and Damietta Barrages, and other Improve ments. Remarks on Deltaic Canals. Concluding Remarks on Irrigation 43.