Excerpt from The Steam Engine Considered as a Heat Engine: A Treatise on the Theory of the Steam Engine, Illustrated by Diagrams, Tables, and Examples From Practice Dimer-cut, however, as the ah engine and the steam engine are, it is possible to show that, if certain prescribed conditions are satisfied, the eficiency of the two must be thesame, andfurther thatnoothsrenginecanhaveagreaterefiiciency. This very ixnportant investigation occupies the fifth chapter, in which is introduced a second principle governing the operation of heat engines, not less important than the principle of the equivalence of heat and work. This principle is not probably in itself more. 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.