OF THE- FRANKLIN INSTITUTE. DEVOTED TO SCIENCE AND THE MECHANIC ARTS. EDITED BY Prof. Edwin J. Houston, A.M., Ph.D., Chairman; Prof. Arthur Beardsley, Secretary of the Institute. VOL. CXL.-Nos. 835-840. JULY-DECEMBER, 1895. PHILADELPHIA: Published by the Institute, at the Hall, 15 South Seventh Street. 1895. Vol. CXL.-July-December, 1895. INDEX. Air-lift pump, theory of the. (Harris). . Aldrich, Wm. S. Education and the State university (Hering) Anaglyph, the. A new method of producing the stereoscopic effect. American tools in England Ammeter and voltmeter, recording. (Watch) .. Argon, physical properties of. 314 reasons for predicting the existence of. (Reed) 68 Artificial silk.... 78 198 Bacteriology, recent advances in, etc. (See Ball.) Ball, M. V. Recent advances in bacteriology, with special reference to Ball nozzle, the. (Kitson) Beet sugar industries Bergami, F. The citrate method of phosphoric acid determination, with special reference to insoluble phosphates Berliner, Emile. Technical notes on the gramophone. Bitumen. (See Peckham.) Bitumens. (See Asphalts.) Brass, determining the quality of, by color 391 Buoys, electrically-lighted, in Gedney Chaunel, New York Harbor |