XTbe S^ournal of (3eotOQ^ 



Vol. XXII CONTENTS FOR NOVEMBER-DECEMBER J9J4 No. 5 



THE STRENGTH OF THE EARTH'S CRUST. VII. VARIATION OF STRENGTH WITH DEPTH AS SHOWN 



BY THE NATURE OF DEPARTURES FROM ISOSTASY (Section A) Joseph Barrell 729 



THE ANALCITE BASALTS OF SARDINIA - - - - - - H. S. Washington 742 



ON THE CONDITIONS UNDER WHICH THE VEGETABLE MATTER OF THE ILLINOIS COAL BEDS 



ACCUMULATED - T. E. Savage 754 



BEREA SANDSTONE IN ERODED CLEVELAND SHALE Wilbur Greeley Burroughs 766 



THE AVERAGE IGNEOUS ROCK - - - - W. J. Mead 772 



EOCENE HORIZONS OF CALIFORNIA - _ . . - - Clarence A. Waring 782 



CONTEMPORANEOUS DEFORMATION: A CRITERION FOR AQUEO-GLACIAL SEDIMENTATION 



Frederic H. Lahee 786 

 PROBLEMS OF PETROGRAPHIC CLASSIFICATION SUGGESTED BY THE "KODURITE SERIES" OF INDIA 



Whitman Cross 791 

 A PHENOMENON OF THE KANSAN DRIFT IN NEBRASKA ------ Erwin H. Barbour 807 



EDUARD SUESS --.- William Herbert Hobbs 811 



REVIEWS - - . . - 818 



RECENT PUBLICATIONS - - - .-----.-. 819 



INDEX TO VOLUME XXII ----:---- 825 



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