Consisting of New Hydraulic Formulas and the Rational Law of Variation of Coefficients. Flow and Resistance to Flow in All Classes of Rivers, Canals, Flumes, Aqueducts, Sewers, Pipes, Fire Hose, Hydraulic Giants, Power Mains, Nozzles, Reducers, Etc., with Extensive Tables and Data of Cost Pipes and Trenching and Pipe Line Construction