BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Vol. 2, pp. 1-30. 



PROCEEDINGS OF THE SEMI-ANNUAL MEETING HELD AT 



INDIANAPOLIS 



August 19, 1890 



J. J. STEVENSON, Secretary 



COCT 15 ., " 



NEW YORK 



PUBLISHED BY THE SOCIETY 



January, 1891 



