Excerpt from Gas Manufacture: The Chemistry of a Practical Handbook on the Production, Purification, and Testing of Illuminated Gas, and the Assay of the Bye-Products of Gas Manufacture, For the Use of Students, Chemists, and Gas EngineersI undertook, at the request of the publishers, to endeavour to place at his disposal a text-book embodying the more recent advances.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.