Excerpt from Cyclopedia of Engineering, Vol. 7: A General Reference Work on Steam Boilers, Pumps, Engines, and Turbines, Gas and Oil Engines, Automobiles, Marine and Locomotive Work, Heating and Ventilating, Compressed Air, Refrigeration, Dynamos, Motors, Electric Wiring, Electric Lighting, Elevators Marsh gas, also called methane, is odorless, colorless, has a high’ calorific power but slow rate of combustion, and burns with a slightly luminous ﬂame. 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.