Excerpt from Shipbuilding and Shipping Record, Vol. 6: A Journal of Shipbuilding, Marine Engineering Docks, Harbours and Shipping; October 21, 1915 The fact that coal is a substance varying in properties and qualities was emphasised by the author, and in these days of recorded data and strict economy in engineering it is somewhat surprising that coal, our chief fuel and main expenditure, should have escaped the balance and the measure so long. To the marine engineer a more accurate knowledge of the fuel he is burning would undoubtedly be an advantage. This, combined with a slight knowledge of practical funnel gas analysis. And the simpler apparatus to perform these interesting experiments and tests would, the author ventured to assert. Lead to better results than are to be obtained in the ordinary run of things from the taking and studying of the indicator card. To the marine engineer. Therefore, the application of coal analysis and funnel gas testing is open to awide field of interesting and useful research. For to the marine engineer the engine room and stokehold are his research laboratory, the place where his chief experience is to be gained. And the fascination is the research work in an engine room is never ending. Never without interest and always instructive. 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.