Excerpt from Waterworks Handbook This book gives a usable compilation of information, old and new, for the waterworks engineer and superintendent, the designer, constructor, operator and inspector. The materials have been accumulated by the compilers in the course of their practice in various branches of waterworks engineering. The user is assumed to have some familiarity with mathematics, hydraulics, the natural sciences and waterworks construction, operation and maintenance, and to possess ordinary mathematical tables. For some cases, instead of rules or formulas, data have been given, from which the engineer can make his own determinations, exercising his judgment in accordance with local conditions and other data which he may possess. Mention of materials, apparatus, equipment, methods, formulas, persons or business concerns, does not nec essarily imply approval by the compilers. Acknowledgment of large indebted ness to many persons is here made, especially to John H. Gregory, and Thomas C. Atwood, who read the proofs and made numerous helpful sug gestions; credit to many others is given throughout the text. For convenience of reference the book has been made partially self-indexing by grouping most of the contents under the following topics, naturally ar ranged: Sources of Supply; Collection and Works Therefor; Transportation by Aqueducts, Pipes, and Other Conduits; Distribution, Hydrostatics and Hydraulics; Materials Much Used in Waterworks; and Treatment by Filtra tion, Aeration, Chemicals and Other Means. Each topic is divided on natural and obvious lines and its divisions arranged sequentially. Material not readily classified under the above topics has been assembled under the heading of Miscellany on p. 635 et seq. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.