Excerpt from The Steam Consumption of Locomotive Engines From the Indicator Diagrams Two general methods of testing locomotives for economy and capacity are in use: (1) On the test plant, where all quantities measured may be ascertained with great accuracy for any given set of conditions and where conditions can be controlled. (2) On the road in regular service by measuring the total coal and water used for all purposes, and by determining the power developed by the engine either in the cylinders by means of the indicator, or at the tender drawbar through the aid of a dynamometer car. 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.