About this book
PHILADELPHIA Published by the Institute, at the Hall, 15 South Seventh Street
The Franklin Institute
DEVOTED TO SCIENCE AND THE MECHANIC ARTS
Edited by R. B. OWENS, E.E., M.A., D.Sc., F.R.S.C.
Brig. Gen. James Allen Harry F. Keller, Ph.D.
C. P. Steinmetz, Ph.D.
Wilder D. Bancroft, Ph.D. Gaetano Lanza, C.E.
S. W. Stratton, Sc.D.
John J. Carty Ralph Modjeski, D.Eng.
Naval Con. D. W. Taylor
A. S. Cushman, Ph.D. L. A. Osborne, M.E.
S. M. Vauclain, Sc.D.
Louis Duncan, Ph.D. Albert Sauveur, B.S,
R. S. Woodward, Ph.D.
W. J. Humphreys, Ph.D. Edgar F. Smith, Ph.D.
A. F. Zahm, Ph.D.
Harry C. Jones, Ph.D.
Lt. Col. Geo. O. Squier, Ph.D.
COMMITTEE ON PUBLICATIONS:
Louis E. Levy, Chairman
George A. Hoadley W.C.L. Eglin
E. H. Sanborn
Control and Protection of Electric Systems. By Charles Proteus Steinmetz
Biochemical and Engineering Aspects of Sanitary Water Supply. By George
A Relation Concerning the Distribution of an Electrolyte between Water
and Some Second Solvent and its Dissociation Constant in Aqueous
Solution. By Henry Jermain Maude Creighton
Conditions Affecting the Success of Main Line Electrification. By W. S.
Notes from the U. S. Bureau of Standards:
A Study of the Quality of Platinum Ware
A Direct-reading Device for Use in Computing Characteristics of Vacuum Tungsten
Construction of Primary Mercurial Resistance Standards
The Franklin lastitute:
Award of the Franklin Medal .
Committee on Science and the Arts, Stated Meeting, June 2, 1915
Current Topics .
16, 62, 99, 100, 122, 123
THE FRANKLIN INSTITUTE OF THE STATE OF PENNSYLVANIA,
FIVE DOLLARS PER YEAR (Foreign Postage Additional). SINGLE NUMBERS, FIFTY CENTS.
Entered at the Post-office at Philadelphia, Pa.. as second-class matter.
Copyright, 1915, by THE FRANKLIN INSTITUTE.