Blue hard covered books. .2) Volume III Irrrigation Structures and Distrubution Systemirrigation, water canals, tunnels, flumes, pipes, concrete pipes, wrought iron and steel pipes, wooden pipes, california, diversion works, weirs, spillways, canals, check gates, railroad crossing, america, united states of america, university of california, yellowstone river, colorado, arizona, windlass hoist, twin falls, idaho, arkansas valley, truckee-carson, salmon river, umatilla, cippoletti weir box