Excerpt from The Practical Engineer's Hand-Book: Comprising a Treatise on Modern Engines and Boilers Marine, Locomotive, and Stationary This volume is designed as a companion to the Author's book, the works' manager's hand-book, and, like that work, contains a quantity of matter not originally intended for publication, but collected for the Author's own use in'the practical construction of a variety of modern engineering work. The Author has endeavoured to give in simple lan guage, bereft of complex mathematical formulae, and in a concise and condensed form, the most useful practical information, freely illustrated by well-executed engravings, which elucidate and shorten description; and to explain the true principles Of, and give the principal rules for, the construction Of engines and boilers, and the economical production of steam-power. 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.