INDEX. 



1.7.1 



Page 



Glaciers in Alaska, Distribution of 152 



— , Relation of, to distribution of mammoth remains 123 



— in Siberia, Probable relation of, to mammoth remains 123 



— of southern Alaska, Relation of, to existing climatic conditions 152-153 



— of southern Alaska, General absence of debris on 151 



"G. W. Elder", Passage in 102 



Greenland, Glaciers of 154 



Hancock hills, Glaciation of 142-143 



Harper, A., Cited on volcanic dust along the Yukon 145 



Highlands of the upper Yukon, Character of 114-115 



Hooper, C. L., Cited on the origin of clear ice in the tundra 128 



— , Reference to description of ice-cliffs by 127 



— , Reference to description of the tundra by 125 



— , Reference to observations on depth of frozen soil 130 



Ice Age, Continuation of, in Alaska and Greenland 154 



Ice in the tundra, Explanation of the origin of 128-129 



— movement, Direction of, in the upper Yukon region 143 



Ii.iuliuk, Arrival at 101 



— , Character of vegetation near 126 



— , Scenery near 139-140 



Joint-valleys in the bluffs of the lower Yukon 109 



Juneau, Arrival at 102 



— , Climate of 153 



— , Direction of ice movement near 143 



— , Mention of 102 



— glacier, Mention of 151 



Kochler, K., Meteorological observations by 153 



Kotzebue, O. Von, Reference to description of ice-cliffs by 121 



Kotzebue sound, Depth of frozen strata near 127 



Kowak river, Mention of ice-cliffs on 127 



Koyukuk river, Character of banks of the Yukon near 112 



Kuskowim river, Drift-wood of Ill 



Labrador glacier, Relative age of 154 



Lake, A-tlin, Suggested survey of pass leading to 103 



— , Crater not the source of the Yukon 105, 107 



, Snow banks and glaciers near 148 



— Bennett, Mention of 102 



, Turbidity of water of 116 



— Lebarge, Direction of ice movement near 142, 143 



, Mention of 102 



, Mention of glacial evidence near 115 



— — , Source of sediment in 116 



, Upward deflection of glacial grooves near 142 



— Lindeman, Glacial records near 148 



, Mention of 102 



not the source of the Yukon 105 



, Terraces near 144 



, Turbidity of the water of 116 



— Marsh, Turbidity of the water of .' 116 



— Nares, Mention of 102 



— Tagish, Mention of 102 



, Suggested survey of pass leading to 103 



— Teslin, Source of the Yukon near 107 



— Tagish, Turbidity of the water of 116 



— terraces along the Lewes 146 



— Yukon, Description of 146-148 



Lakes on the tundra, Character and origin of 128 



Lariviere, H 103 



Lemon creek glacier. Mention of 151 



Lewes river. Arrival at mouth of 102 



included under the name Yukon 105, 108 



, Measurements of volume of 106, 107 



