Mechanical tests of pumps and pumping plants used for irrigation and drainage in Louisiana in 1905 and 1906. (1907)
U.S. Department of Agriculture, Office of Experiment Stations · Washington : Govt. Print. Office · leaf 70
Fig. 3. Diagram showing profits and losses from Plant No. I. contrary, are both attributes of high-grade machinery. The propor-tions must be Mich thai an accident to a portion of the machinery willnot paralyze the entire plant. There should be at least two units, andthe figures given in this… … Fig. 4.—Diagram showing cost of fuel and total cost of irrigation per acre under varying conditions. 70 DRAINAGE PLANTS. It is estimated that nearly one-half of the area of Louisiana is ofalluvial formation, having been deposited in recent geological agesby the great river. Like all alluvial soil…
