INDEX 
Yakutat Bay, general geology 23 
Vancouver Series 49-50 
Yakutat formation, fossils and age 125- 
146, pis- XI-XXI 
Yakutat Series 23, 46, 49 
Yentna Series 46 
Yoldia breweri 8, 105, pi. ix 
emersonii 8 , 104, pi. ix 
palachei 8, 104, 107, pi. ix 
Zakharof Bay 112 
173 
