Che Journal of Geology 
Published on or about the following dates: February 1, March 15, May 1, June 15, 
August 1, September 15, November 1, December 15. 
Vol. XX CONTENTS FOR NOVEMBER-DECEMBER, 1912 No. 8 
THE BANNOCK OVERTHRUST; A MAJOR FAULT IN SOUTHEASTERN IDAHO AND NORTHEASTERN 
UTAH ma RG Neh Ne ae ot ee ea ase) RS Wi) (RICHARDS) AND |G.) Rs) MANSFIELD IM TOSE 
GLACIATION IN THE TELLURIDE QUADRANGLE, COLORADO. III - - - - £Atten Davi Hote 710 
ON THE STRATIGRAPHIC POSITION AND AGE OF THE JUDITH RIVER FORMATION. III A.C. Preate 738 
USE OF SYMBOLS IN EXPRESSING THE QUANTITATIVE CLASSIFICATION OF IGNEOUS ROCKS 
WHITMAN Cross 758 
THE PHYSICAL SETTING OF THE CHILEAN BORATE DEPOSITS- - -  -  Rowin T. CHAMBERLIN 763 
WATER-WORN COAL PEBBLES IN CARBONIFEROUS SANDSTONE - - - - WruamF. Prouty 769 
RUB VIR WS 2h 0 ae es Past) RV de tals Aa eae aOR Os eae a PU a CR a 
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