VOLUME XXXI NUMBER 8 



THE 



Journal of Geology 



A Semi-Quarterly 



Edited By 

 thomas c. chamberli 



With the Active Collaboration of . ->»;>»..» #ri*.„g aa4 4«i'' 



ROLLIN T. CHAMBERLIN, Managing Editor "" "^ 



Dynamic Geology 

 STUART WELLER, Invertebrate Paleontology ALBERT- JOHANNSEN, Petrology 



EDSON S. BASTIN, Economic Geology J HARLEN BRETZ, Stratigraphic Geology 



ASSOCIATE EDITORS 



SIR ARCHIBALD GEIKIE, Great Britain CHARLES D. WALCOTT, Smithsonian Institution 



CHARLES BARROIS, France DAVID WHITE, U.S. Geological Survey 



I, ALBRECHT PENCK, Germany RICHARD A. F. PENROSE, Jr., Philadelphia, Pa. 



^ W. C. BROGGER, Norway WILLIAM H. HOBBS, University of Michigan 



;• GERARD DeGEER, Sweden FRANK D. ADAMS, McGill University 



SIR T. W. EDGEWORTH DAVID, Australia CHARLES K. LEITH, University of Wisconsin 



H. ALBERl' BROUWER, Holland WALLACE W. ATWOOD Clark University 



BAILEY .VILLIS, Leland Stanford Junior University WILLIAM H. EMMONS, University of Minnesota 



ARTHUR L. DAY, Carnegie Institution 



NOVEMBER-DECEMBER 1923 



.. THE CHANNELED SCABLANDS OF THE COLUMBIA PLATEAU - J Harlen Bretz 617 



^ ALMANDITE AND ITS SIGNIFICANCE IN THE CONTACT ZONES OF THE GREN- 



VILLE LIMESTONE George W. Bain 650 



A NOTE ON JOINTAGE AND THE APPLICATION OF THE STRAIN ELLIPSOID 



Roy R. Morse 669 



THE GLACIAL GEOLOGY OF GRAND MESA, COLORADO - -' Junius Henderson 676 



EDITORIAL - - 679 



^REVIEWS - - 680 



INDEX 690 



THE UNIVERSITY OF CHICAGO PRESS 



CHICAGO, ILLINOIS, U.S.A 



THE CAMBRIDGE UNIVERSITY PRESS, London 



THE MARUZEN-KABUSHIKI-KAISHA, Tokyo, Osaka, Kyoto, Fdkuoko, Sendai 



THE MISSION BOOK COMPANY. Shanghai 



