History of American Steam Navigation (Classic Reprint)

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Excerpt from History of American Steam Navigation After passing through many years with wooden-hull vessels, whose form, either for ocean or river service, could not be excelled by any nation of shipbuilders, we came in about 1870 to the period of a radical change from wooden to iron hulls - not but that many iron-hull vessels had been built in the United States prior to this date - but a more general adoption of iron for the purpose, and the substitution of the screw propeller for the side wheel, with the adoption of the compound engine for the simple engine in screw vessels. About fifteen years ago steel hulls and triple-expansion engines were introduced. 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.