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WASHINGTON, D.C.
Meeting 473
Cosmos Club
Wednesday, February 11, 1931
Oscar Edward Meinzer, President Arthur Maine Piper, Meeting Secretary
Frank Charles Kracek—Geophysical Laboratory—Recent studies of alkali silicate systems.
Philip John Shenon—USGS—The Flathead mine, Montana, an unusual silver deposit.
Edward Oscar Ulrich—USGS—Highlights of the past two seasons' work in early Paleozoic stratigraphy.
Attendance: 59
Minutes not available.
Published account of meeting appears in: J. Wash. Acad. Sci. 21, 178-182