Excerpt from Engine Tests: Embracing the Results of Over One Hundred Feed-Water Tests and Other Investigations on Various Kinds of Steam Engines, Conducted by the Author Opportunity that could be afforded at that time for becoming educated in the practice of engine-testing, and the training thus acquired laid the foundation for much of the testing-work in which he has since been engaged. This volume relates mainly to the engine tests which the author has conducted subsequent to the investigations in super heating just referred to. It has been his custom, whenever en gaged upon any work relating to the performance of engines, to advocate the determination of their economy on the basis of feed-water consumption, rather than on that of the coal con sumed. Whenever called upon Simply for indicating, he has advocated the feed-water test, rather than to rely solely on the Showing of the diagram. In a great many instances the feed water test has thus been undertaken where it would have other wise been omitted. By following this practice, and answering the calls which have come in the ordinary course, the author has personally Obtained a considerable amount of data, which he believes to be Of value to the engineering public, as well as to all who are interested in the use of power or development of economical engines, and therefore worthy Of publication In permanent form, as here presented. 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.