Excerpt from The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science, Vol. 20: July December, 1860 Proceedings of the Royal Society Mr. J. P. Gassiot on Vacua as indicated by the Mercurial Siphon-gauge and the Electrical Discharge Dr. A. H. Hassall on the frequent occurrence of Phosphate of Lime, in the crystalline form, in Human Urine Dr. Harley on the Saccharine Function of the Liver Drs. De la Rue and Miiller on the Resin of the Ficus rubiginosa, and a new Homologue of Benzylic Alcohol. 225 Mr. P. Griess on a new Method of Substitution; and on the formation Of iodobenzoic, lodotoluylic, and Iodo anisic Acids Mr. B. Stewart on an Instrument combining in one a Maximum and Minimum Mercurial Thermometer Messrs. Grace-calvert and Lowe on the Expansion of Metals and Alloys Prof. W. Thomson on the Measurement of the Electro static Force produced by a Daniell's Battery Proceedings of the Geological Society M. E. Lartet on the co-existence of Man with certain Extinct Quadrupeds Mr. W. P. Jervis on certain Rocks of Miocene and Eocene age in Tuscany Dr. Falconer on the Ossiferous Caves of the Peninsula'of Gower in Glamorganshire. On the Periodicity of the Solar Spots, and induced Meteorolo gical Disturbances, by Robert P. Greg, Esq. On the Phaenomena of Heat which in certain cases accompanies the Vibratory Motion of Bodies, by M. Le Roux On the Density of Ice, by M. L. Dut'our. 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.