L96 
INDEX. 
Page. 
Wright, K. E., on southeastern Alaska 47-68 
work of 15-16, 47 
Y. 
Yakima, gold ores at 50 
Yaktag, Cape, geology of 88-89 
methods at ■.... 89 
oil at 139 
placers of 88-89 
production of 88 
Yakutat Bay, placers at 88 
sands at 89 
Yankee Cove, work at 54 
York region, investigations in 16 
tin m 120-127 
Page. 
York River, tin on 126 
Young Bay, mines of, developments and 
methods at 55-57 
Y T ukon basin, drainage of 107-108 
Yukon district, placer mining in, account 
of 25-31 
See also Rampart, Fortymile, and Eagle 
regions; Birch Creek, Bonner- 
ville, and Koyukuk districts. 
Yukon-Tanana region, investigations in . . . 17 
rocks of 109-110 
surveys in 15 
Z. 
Zinc, occurrence of 61,98,100 
O 
