Excerpt from Evaporation Loss of Petroleum in the Mid-Continent Field Investigation has further shown that the gasoline in crude oil evaporates from one-half to six-tenths as rapidly as the same gaso line after being distilled and stored, all evaporative conditions being the same. Many wastes in the oil fields are called necessary. By this is meant that the cost of preventing the waste is greater than the gain through. Saving. Evaporation losses have fallen heretofore in this category, but now they must be considered unnecessary. In other words, it is no longer economical for any handler of crude oil to permit losses through evaporation. 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.