VOLUME XXII 



NUMBER 2 



THE 



Journal of Geology 



A Semi-Quarterly 



Edited By 



thomas c. chamberlin and rollin d. salisbury 



With the Active Collaboration of 



SAMUEL W. WILLISTON 



Vertebrate Paleontology 



STUART WELLER 



Invertebrate Paleontology 



ALBERT JOHANNSEN 

 Petrology 



WALLACE W. ATWOOD 

 Physiography 



WILLIAM H. EMMONS 



Economic Geology 



ROLLIN T. CHAMBERLIN 

 Dynamic Geplogy 



ASSOCIATE EDITORS 



SIR ARCHIBALD GEIKIE, Great Britain 



HEINRICH ROSENBUSCH, Germany 



THEODOR N. TSCHERNYSCHEW, Russia 



CHARLES BARROIS, France 



ALBRECHT PENCK, Germany 



HANS REUSCH, Norway 



GERARD DeGEER, Sweden 



ORVILLE A. DERBY, Brazil 



T. W. EDGEWORTH DAVID, Australia 



BAILEY WILLIS, Argentine Republic 



GROVE K. GILBERT, Washington, D.C. 

 CHARLES D. WALQPTT, Smithsonian Institution 

 HENRY S. WILLIAMS, Cornell University 

 JOSEPH P, IDDINGS, Washington, D.C. 

 JOHN C. BRANNER, Leland Stanford Junior University 

 RICHARD A. F. PENROSE, Jr., Philadelphia, Pa. 

 WILLIAM B. CLARK, Johns Hopkins University 

 WILLIAM H. HOBBS, University of Michigan 

 FRANK D. ADAMS, McGill University 

 CHARLES K. LEITH, University of Wisconsin 



FEBRUARY-MARCH 1914 



PRELIMINARY RESULTS OF MEASUREMENTS OF THE RIGIDITY OF THE EARTH 



A. A. MiCHELSON 97 



DIASTROPHISM AND THE FORMATIVE PROCESSES. V. THE TESTIMONY OF THE 



DEEP-SEA DEPOSITS --------- T. C. Chamberlin 131 



THE STRENGTH OF THE EARTH'S CRUST. H. REGIONAL DISTRIBUTION OF 



ISOSTATIC COMPENSATION - - - - - - - Joseph Barrell 145 



MECHANICS OF FORMATION OF ARCUATE MOUNTAINS. II - William H. Hobbs 166 



PETROLOGICAL ABSTRACTS AND REVIEWS --------- 180 



THE UNIVERSITY OF CHICAGO PRESS 



CHICAGO, ILLINOIS, U.S.A. 



Agents 



THE CAMBRIDGE UNIVERSITY PRESS, London and Edinburgh 



WILLIAM WESLEY & SON, London 



KARL W. HIERSEMANN, Leipzig 



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



