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Presidential Addresses
WASHINGTON, D.C.
Meeting 103
Cosmos Club

Wednesday, May 9, 1900

(Charles) Whitman Cross, President          Frederick Leslie Ransome, Meeting Secretary

John Duer Irving—USGS—The siliceous ores of the Black Hills.

Josiah Edward Spurr—USGS—The igneous rocks of the Great Basin.

George Perkins Merrill†—US National Museum—A new meteorite; and, a case of sandstone disintegration through the formation of interstitial crystals of gypsum.

† GSW Founder

Attendance: 18
Meeting Secretary's Minutes

View all talks from 1900 Go to Meeting number 102 Go to Meeting number 104