Excerpt from A Treatise on Gas-Works and the Practice of Manufacturing and Distributing Coal Gas: With Some Account of the Most Improved Methods of Distilling Coal in Iron, Brick, and Clay Retorts, and of the Various Modes Adopted for Purifying Coal Gas. Including Also, a Chapter on the Hydrocarbon or Water Gas, and on the Rating of Gas-Works in Paroc The author takes this opportunity of returning his warm est thanks for the very courteous manner in which his inquiries have been uniformly met. By every officer, from the highest to the lowest, among the Gas Companies to whom he has applied for information, the most obliging attention has been shown, and nothing could be more satisfactory than the manner in which every process was laid open and every part of the works explained. 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.