Excerpt from Proceedings of the American Philosophical Society, Vol. 61: Held at Philadelphia for Promoting Useful Knowledge<br><br>A Possible Explanation of Upper Eocene Climates. By EU ward W. Berry The Earth Inductor Compass. By paul R. Heyl and lyman J. Briggs The Probable Action of Lipoids in Growth. By D. T. Mac dougal The Small Entelodonts of the White River Oligocene. By william J. Sinclair Hyracodons from the Big Badlands of South Dakota. By wil liam J. Sinclair The Use of Devices for Indicating Vowel Length in Latin. By john C. Rolfe Some Peculiarities of the Novae. By E. E. Barnard The Relations of the Retinal Image to Animal Reactions. By G. H. Parker Some Typographic and Climatic Characters in the Annual Rings of the Yellow Pines and Sequoias of the Southwest. By A. E. Douglass The Effect of Diurnal Variation of Clock Rates upon Longitude Work. By R. H. Tucker Ecologic and Morphologic Study of the Clovers (trifolium). By john W. Harshberger The Faeroe Language. By J. Dyneley prince Minutes Discussion of a Kinetic Theory of Gravitation, II; and Some New Experiments in Gravitation. By charles F. Brush. Lithology of the White River Sediments. By harold F. Wan lass Yellow Fever and Fishes. By C. H. Eigenmann Arc Spectra and Ionization Potentials in Dissociated Gases. By K. T. Compton Manna, Nectar, and Ambrosia. By paul haupt.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>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.