INDEX 
New genera and species of fossils are in black-face type; synonyms are in 
italics ; pages on which generic or specific descriptions occur are in black-face 
type. 
Pages on which rocks receive petrographic description or minerals crystallo¬ 
graphic description are in black-face type. 
Acer ace se 155, pi. xxix 
Acer trilobatum 155, 161, 162, pi. xxix 
Acila decisa 105, pi. ix 
Actinolite-schist, Gold Creek 65 
JEsculus arctica 8, 155-156, pi. xxx 
Alaska, map pi. 1 
Alaska Peninsula, Chichagof Peak pis. 
VII, VIII 
fossils of Chichagof Cove 99-111, 
pis. ix, x 
fossils of Kukak Bay 149-162, pis. 
XXII- XXXIII 
geology about Chichagof Cove 
69-88 
Mount Pavlof frontispiece 
Mount Shishaldin pi. 111 
Alaska-Treadwell mine 59-66 
Albite, Treadwell mine 92 
Albite-diorite, Treadwell mine 63 
Aleutian Islands 45 
Alkali-syenite-porphyry, Ch ichagof 
Cove 82-84 
Alnus corylifolia 155, 160, 162 
species 155, pis. xxvm, xxxm 
Alpine Trias, Cold Bay 46 
Queen Charlotte Islands 45 
Ammonites biplex 127 
wosnessenskii 127 
Amphibolite, Annette Island 16 
Hubbard Glacier 23 
Port Clarence 44 
Ampullaria crassatina no 
? Ampullina crassatina no 
Analysis, trachyte of St. Matthew 
Island 35 
Andesite, Bogoslof Island 30, pi. IV 
St. Matthew Island 36 
Andesite, augite- 29, 36, 37, 70 
augite-hypersthene- 70 
biotite- 43 
biotite-augite- 42 
biotite-hornblende- 37 
hornblende- 38, 43 
Andromeda grayana 157, 162 
Annelid tube 119-120 
Annette Island, geologic section 15 
Annulata, fossil 119, 121 
Aplite, College Fiord 51 
Glacier Bay 20 
Gold Creek 65 
Lowe Inlet 15 
Plover Bay 43 
St. Lawrence Island 41 
St. Matthew Island 35 
Skagway 22 
Aplite, diorite- 86 
Apollo gold mine 71 
Argillite 45 
Arcestes gabbi 45 
Arkose, Annette Island 15, 16 
Wrangell 16, 17 
Arthraria 129 
Arthrodendron 138 
diffusum 138-139, pi. xiv 
Astarte borealis 121 
Astoria Group 112 
