XLbc 3^ournal of Geology 



Vol. XXIII CONTENTS FOR JULY-AUGUST J9J5 No. 5 



THE GEOLOGY OF CENTRAL MINAS GERAES, BRAZIL. PART II E. C. Harder and R. T. Chamberlin 38s 



THE STRENGTH OF THE EARTH'S CRUST. VIII. PHYSICAL CONDITIONS CONTROLLING THE 



NATURE OF LITHOSPHERE AND ASTHENOSPHERE (Section A) - - - - Joseph Barrell 425 



THE BURIED ROCK SURFACE AND PRE-GLACIAL RIVER VALLEYS OF MINNEAPOLIS AND VICINITY 



E. K. Soper 444 



SUMMARIES OF PRE-CAMBRIAN LITERATURE OF NORTH AMERICA FOR igoq, 1910, 1911, AND PART 



OF 1912. IV. ..------------- Edward Steidtmann 461 



REVIEWS - - 477 



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