CONTENTS 
PAGE 
Preface . v 
Introduction. By G. K. Gilbert.......... i 
Itinerary. 3 
Results. 6 
List of new genera and species.. 7 
General Geology. ByB. K. Emerson. 11 
Introduction ........ 11 
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. 71 
The Stepovak Series. 74 
The igneous rocks. 79 
Minerals. By Charles Palache. 91 
Catalogue of minerals. 93 
Neozoic Invertebrate Fossils. By William H. Dali. 99 
I. Eocene fossils from Alaska Peninsula. 99 
II. Miocene fossils from the Shumagin Islands. 111 
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 
(vii) 
Index 
