Researches in terrestrial magnetism and electricity at Department of Terrestrial Magnetism, Carnegie Institution of Washington, for Year April 1939 to March 1940

Abstract

The work of the Department in the fields of terrestrial magnetism and electricity during the year has been characterized by the continued reduction and intensive study of observational data obtained in the field and at the observatories. An outstanding event, in which the Department had a large part, was the Seventh General Triennial Assembly of the International Union of Geodesy and Geophysics at Washington, D.C., September 4–15, 1939. This year has also been marked by the publication (August 1939) of “Terrestrial magnetism and electricity,” which is volume VIII of the “Physics of the Earth” series sponsored by the National Research Council. Of the 14 authors contributing to this volume, eight are members of the Department's regular staff.