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WASHINGTON, D.C.
Meeting 470, followed by Annual meeting 38
Cosmos Club
Wednesday, December 10, 1930
George Rogers Mansfield
,
President
Carle Hamilton Dane
,
Meeting Secretary
George Rogers Mansfield
—
USGS
—Problems in the Phosphoria formation in the Rocky Mountains.
(Presidential Address).
Attendance: 73
Minutes not available.
Published account of meeting appears in: J. Wash. Acad. Sci. 21, 26-32
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Meeting number 469
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Meeting number 471
