4 CONTENTS. 
Page. 
Publication branch 93 
Editorial division 93 
Section of texts - 1>4 
Section of geologic maps 98 
Section of topographic maps 104 
Section of illustrations 108 
Section of photography 110 
Division of engraving and printing 113 
Division of documents 117 
Publications of the United States Geological Survey 119 
Annual Reports 120 
Monographs 130 
Professional Papers 133 
Bulletins 135 
Water-Supply and Irrigation Papers 144 
Mineral Resources 150 
Annual Reports of the Reclamation Service 151 
Geologic Atlas of United States 1 52 
Topographic maps and folios 155 
Reports and maps relating to Alaska L98 
Index 203 
