Excerpt from International Library of Technology, Vol. 1: Automobile-Engine Auxiliaries; Automobile Carbureters; Electric Ignition; Transmission and Control Mechanism; Bearings and Lubrication; Automobile Tires Many automobile engines are cooled by circulating water or some other liquid through the space between the outer wall of the cylinder and a jacket casing that surrounds the cylinder head and the part of the cylinder barrel nearest the head. Air is used for cooling in only a comparatively small proportion of automobile engines, and in some cases oil is used in winter as the cooling medium. About the only objection to the use of water for cooling is that it is liable to freeze in cold weather. In order to over come this objection, various substances are added to the water or dissolved in it so as to form a mixture that will not freeze until the temperature is considerably below that at which pure or nearly pure water freezes. 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.