Smithsonian Contributions to Knowledge 1126, Hodgkins Fund

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Excerpt from Smithsonian Contributions to Knowledge 1126, Hodgkins Fund: A Determination of the Ration (X) Of the Specific Heats at Constant Pressure and at Constant Volume for Air, Oxygen, Carbon-Dioxide, and Hydrogen The present memoir is the result of a series of investigations by Doctors O. Lummer and E. Pringsheim, of Charlottenburg, Germany, aided by a grant from the Hodgkins Fund of the Smithsonian Institution. After a period of notable advance the kinetic theory of gases seems to have fallen into temporary abeyance, possibly from a fundamentally imperfect understanding of their behavior. Progress in knowledge of this fundamental nature of gases may reasonably be looked for from interpretative researches on their thermal capacity, and the following paper may be regarded as a step in this direction. Aside from its exceptional importance in thermodynamics, the specific heat ratio is of interest as affording a clue to the character of the molecule, and Messrs. Lummer and Pringsheim, using a new method, appear for the first time to have reached coincident results on the incoercible gases examined. In accordance with the rule adopted by the Institution, the work has been referred for examination to a Committee consisting of Professor Doctor Friedr. Kohlrausch, President of the Physikalisch-Tech-nische Reichsanstalt of Berlin, Doctor Carl Barus of Brown University, Providence, R. I., and Professor F. W. Clarke of Washington City, and, having been recommended for publication, the original memoir, submitted to the Institution in German by Doctors Lummer and Pringsheim, is herewith presented, translated into English by Doctor Barns, in the series of Contributions to Knowledge. 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.