Abstract

Session of January 29

The Cordilleran Section of the Geological Society of America held its twenty-fifth annual meeting at the Department of Geology, Stanford University, California, on January 29 and 30, 1926, in conjunction with the Pacific Coast Branch of the Paleontological Society of America and the Le Conte Club.

ELECTION OF OFFICERS

The following officers were elected to serve during 1926:

Chairman, Eliot Blackwelder

Secretary, John P. Buwalda

Councilor, William T. Miller

PRESENTATION OF PAPERS

The meeting was called to order at 2.00 p. m. by the Chairman, Eliot Blackwelder. Dr. Blackwelder then requested Dr. C. F. Tolman to take the chair and conduct the symposium arranged by him at the invitation of the Executive Committee.

SYMPOSIUM ON SILICEOUS SHALES AND ORIGIN OF PETROLEUM IN CALIFORNIA

C. F. TOLMAN, LEADER

OPAL AND ITS RELATION TO OTHER FORMS OF SILICA

BY AUSTIN F. ROGERS

DISTRIBUTION AND THICKNESS OF DIATOMACEOUS SHALES . . .

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