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Excerpt from Publications From the Massachusetts Institute of Technology: January, 1927 The later careful experimental work of Lamb and Coolidge on the ad sorption heats for organic vapors, wherein the charcoal was pumped out at 350° and to a pressure of mm., Showed that the adsorption heat was reproducible and decreased in a definite manner with the amount adsorbed. It was further clearly demonstrated that the heats of ad sorption were practically independent of the capacity of the charcoal to adsorb large amounts of uid. Interesting relationships were also pointed out connecting the heats of adsorption with the latent heats of vaporiza tion, and the heat of compression under high pressure. 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.