TLbc journal of (BeoloQi? 



Vol. XXin CONTENTS FOR FEBRUARY-MARCH J9J5 No. 2 



POST-CRETACEOUS HISTORY OF THE MOUNTAINS OF CENTRAL WESTERN WYOMING. PART I 



Eliot Blackwelder 97 



THE CANTWELL FORMATION: A CONTINENTAL DEPOSIT OF TERTIARY AGE IN THE ALASKA 



RANGE ---. .--. Joseph E. Pogtoe 118 



THE PHYTOSAURIA OF THE TRIAS ----------- Maurice G. Mehl 129 



THE ORIGIN OF THE INCLUSIONS IN DIKES (Concluded) Sidney Powers 166 



SUMMARIES OF PRE-CAMBRIAN LITERATURE OF NORTH AMERICA FOR 1909, 1910, igii, AND PART 



OF 1912. II Edward Steidtmann 183 



REVIEWS - 189 



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