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WASHINGTON, D.C.
Meeting 658
Cosmos Club
Wednesday, January 14, 1948
William Walden Rubey, President David H. Dow, Meeting Secretary
Ellis Adolph Johnson—US Army—History of the Earth's magnetic field.
Paul Niggli—University of Zurich—Some aspects of the geology, petrography, and mineralogy of Switzerland .
Attendance: 171
Meeting Secretary's Minutes