THE LONDON, EDINBURGH, AND DUBLIN PHILOSOPHICAL MAGAZINE AND JOURNAL OF SCIENCE. CONDUCTED BY LORD KELVIN, LL.D. F.R.S. &c. GEORGE FRANCIS FITZGERALD, M.A. Sc.D. F.R.S. AND WILLIAM FRANCIS, PH.D. F.L.S. F.R.A.S. F.C.S. "Nec aranearum sane textus ideo melior quia ex se fila gignunt, nec noster vilior quia ex alienis libamus ut apes." JUST. LIPS. Polit. lib. i. cap. 1. Not. VOL. XLVI.-FIFTH SERIES. LONDON. TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. SOLD BY SIMPKIN, MARSHALL, HAMILTON, KENT, AND CO., LD.; WHITTAKER AND CO.; AND ASHER AND CO., BERLIN. REIL QI 2015 PHYS "Meditationis est perscrutari occulta; contemplationis est admirari perspicua.... Admiratio generat quæstionem, quæstio investigationem, investigatio inventionem."-Hugo de S. Victore. In compliance with current copyright law, U.C. Library Bindery produced this replacement volume on paper that meets the ANSI Standard Z39.48-1984 to replace the irreparably deteriorated original. 1992 CONTENTS OF VOL. XLVI. Dr. William S. Day on a Comparison of Rowland's Thermo- meters with the Paris Standard, and a Reduction of his Value of the Mechanical Equivalent of Heat to the Hydrogen Mr. J. A. McClelland on the Conductivity of the Hot Gases Prof. R. A. Lehfeldt on the Properties of Liquid Mixtures.- Mr. Alfred Stansfield on some Improvements in the Roberts- Austen Recording Pyrometer, with Notes on Thermo-Elec- tric Pyrometry Mr. John Zeleny on the Ratio of the Velocities of the Two .... |