Excerpt from Oil-Storage Tanks and Reservoirs: With a Brief Discussion of Losses of Oil in Storage and Methods of Prevention The Bureau of Mines has been conducting investigations with the view of determining the types of containers best adapted to the stor age oi oil. These investigations have shown that tanks composed Wholly of steel give the best results. Where larger containers than it is feasible to build with steel are desired, concrete-lined reservoirs can be recommended for some grades of oil. Practically all such containers in use at present'have wooden roofs-and this type of construction is here described, although it is the belief of the writer that concrete roofs would be far more satisfactory in every way, and that the difference in cost between a concrete and a wooden roof would, as arule, ' in a few years'_ time be offset by a saving of oil and in cost of repairs and renewals. 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.