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WASHINGTON, D.C.
Meeting 618
Cosmos Club
Wednesday, January 12, 1944
George Tunell, President John Van N. Dorr, Meeting Secretary
Marie Louise Lindberg—USGS—Heavy mineral correlation of Fox Hills, Hell Creek and Cannonball sediments, North Dakota.
James Steele Williams—USGS—Principal fluorspar deposits of the United States -- a résumé.
John Beaver Mertie Jr.—USGS—Piezoelectricity, with special reference to quartz.
Attendance: 132
Minutes not available.
Published account of meeting appears in: J. Wash. Acad. Sci. 35, 196-199