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WASHINGTON, D.C.
Meeting 776
Cosmos Club, Mass Ave, Assembly Hall
Wednesday, May 8, 1957
William Drumm Johnston Jr., President Donald Cave Duncan, Meeting Secretary
Ellis Leon Yochelson—USGS—The Lower Ordovician gastropod, Ceratopea.
Isidore Zietz—USGS—How significant can a figure be?.
Irving Friedman and Robert Leland Smith—USGS—The origin of water in some volcanic glasses.
Attendance: 99
Meeting Secretary's Minutes
Second published account of meeting appears in: pub2