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WASHINGTON, D.C.
Meeting 472
Cosmos Club

Wednesday, January 28, 1931

Oscar Edward Meinzer, President          Arthur Maine Piper, Meeting Secretary

Clarence Samuel RossUSGS—The Valles Mountain volcanic crater, New Mexico.

Adolph KnopfYale University—The Engels copper district, California.


Attendance: 92
Minutes not available.
Published account of meeting appears in: J. Wash. Acad. Sci. 21, 178-182

View all talks from 1931 Go to Meeting number 471 Go to Meeting number 473