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WASHINGTON, D.C.
Meeting 320
Cosmos Club
Wednesday, April 25, 1917
Walter Curran Mendenhall, President Esper Signius Larsen Jr., Meeting Secretary
Gerald Francis Loughlin—USGS—The relation of copper to zinc in the carbonate ore at Ophir, Utah.
George Perkins Merrill†—US National Museum—The rarer constituents of meteorites.
Francois Emile Matthes—USGS—The pre-glacial history of Yosemite Valley.
† GSW Founder
Attendance: 0
Minutes not available.
Published account of meeting appears in: J. Wash. Acad. Sci. 8, 98-101