CONTENTS 



PAGE 



PREFACE v 



INTRODUCTION. By G. K. Gilbert i 



Itinerary 3 



Results 6 



List of new genera and species 7 



GENERAL GEOLOGY. By B. K. Emerson n 



Introduction n 



Victoria to Unalaska 13 



About Bering Sea 29 



The Vancouver Series 44 



Summary 54 



THE ALASKA-TREADWELL MINE. By Charles Palache 59 



GEOLOGY ABOUT CHICHAGOF COVE. By Charles Palache 69 



Vicinity of Sand Point, Popof Island 70 



Stepovak Bay 7 x 



The Stepovak Series 74 



The igneous rocks 79 



MINERALS. By Charles Palache 91 



Catalogue of minerals 93 



NEOZOIC INVERTEBRATE FOSSILS. By William H. Dall 99 



I. Eocene fossils from Alaska Peninsula 99 



II . Miocene fossils from the Shumagin Islands in 



III. Pleistocene fossils from Douglas Island 120 



FOSSILS AND AGE OF THE YAKUT AT FORMATION. By E. O. 



Ulrich 125 



Distribution 125 



Age 126 



Descriptions of species 132 



FOSSIL PLANTS FROM KUKAK BAY. By F. H. Knowlton 149 



Systematic enumeration of species 149 



Discussion of the flora 158 



Biological aspect 158 



Geological aspect 161 



INDEX 



(vii) 



