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TERRESTRIAL MAGNETISM
AND
ATMOSPHERIC ELECTRICITY
AN INTERNATIONAL QUARTERLY JOURNAL
Conducted by
Department Terrestrial Magnetism, Carnegie Institution of Washington, D. C.
With the Assistance of
J. S. AMES TH. MOUREAUX
Johns Hopkins University, Baltimore Observatoire, Pare St. Maur
CHARLES CHREE H. F. REID
Kew Observatory, Richmond Johns Hopkins University, Baltimore
R. L. FARIS ADOLF SCHMIDT
Coast and Geodetic Survey, Washington Magneiisches Observatorium, Potsdam
J. A. FLEMING R. F. STUPART
Carnegie Institution of Washington Meteorological Service, Toronto
Councilors
J. ELSTER AND H. GEITEL A. ANGOT M. RYKATCHEW
Germany France Russia
A. SCHUSTER R. S. WOODWARD
England United States, N.A.
VOLUME XXII
MARCH— DECEMBER, 1917
THE JOHNS HOPKINS PRESS
Baltimore, Maryland
19 17
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TABLE OF CONTENTS
MARCH, 1917
On the Conduction of Electricity Through an Ionized Gas, More Particularly in its Relation to Bronson Resistances, - W. F. G. Swarm and S. J. Mauchly, 1
Corpuscular Theory of the Aurora Borealis. Illustrated (Plate I), Carl Stormer, 23
Note Concerning the Effect of Terrestrial Relief on the Ratio of Positive to
Negative Ionic Densities in the Atmosphere, - - P. L. Mercanton, 35
Results of Magnetic Observations at Seddin, near Potsdam, Relating to the
Solar Eclipse of August 21, 1914, - - ' -…