750 



INDEX. 



concerning, explained, 481; in Great 

 Britain, 483, 484; in South Africa and 



, India, 484, 485; in Switzerland and Italy, 

 486 ; in North America, 486 et seq. 

 Glacial striae. See Rock Scoring. 

 Glacial theory, confirmations of, 130, 132, 

 133, 143, 183, 240, 323, 326 et seq., objec- 

 tions to, by Canadian geologists, 200. 



Glaciation, probable causes, 497-519. 

 Glaciation, signs of former, chapter on, 

 108-133; scratches on the rocks, 123 et 

 seq.; unstratified deposits, 129 et seq.; 

 distribution of bowlders, 132, 133. 



Glacier Bay, Alaska, 27, 39, 43, 44, 55, 61, 

 72, 74, 136, 188, 592. 



Glaciers, ancient, in the Rocky Mountains, 

 176; in the Sierra Nevada, 177 et seq.; in 

 the British Isles, 445, 446, 448 et seq., 483; 

 in Scandinavia, 447; in Germany, 456; 

 in India, 484, 485; in South Africa, 485; 

 in the Andes, 512. 



Glaciers, existing, in the Rocky Moun- 

 tains, 13; in the Sierra Nevada, 13 et seq.; 

 in southern California, 13; on Mount 

 Shasta, 15; on Mount Hood, 19; on 

 Mount Tacoma, 21; on Fraser River, 25; 

 on Stickeen River, 25; in Taku Inlet, 

 27; of Lynn Canal, 27; of Mount St. 

 Elias, 30, 600; of Yakutat Bay, 30; of 

 Chugatch Alps, 36; of the Alaskan Pe- 

 ninsula, 36; in Glacier Bay, 40 et seq. ; in 

 Greenland, chapter on, 75-102; in Ells- 

 mere Land,102;inGrinnell Land, 102; in 

 the Alps, 104, 105; in Scandinavia, 104, 

 105; in Spitzbergen, Nova Zembla, and 

 Franz-Josef Land, 107; in Iceland, 107; 

 in Asia, 108; in South America, 108 et 

 seq.; in New Zealand, 112; in the Ant- 

 arctic Continent, 112 et seq.; in Green- 

 land, 602. 



Glaciers, movements oi, 2, 80, 296; semi- 

 fluidity of, 3, 4, 81; structure of, 7; slope 

 of, 18, 47, 77, 78, 85, 88, 95, 108, 198, 201, 

 202, 392; velocity of, 3, 54, 78, 80, 82, 105, 

 202; thickness of, 19, 22, 47, 77, 79, 81 ,85, 

 91, 93, 104, 113, 114, 118, 119, 201, 202, 



Glen Roy, parallel roads of, 364. 



Godfrey's Ridge, Pa., 197, 247. 



Gould, Dr. D. T., on buried channels in 

 Ohio, 304. 



Grafton county, N. H., 330, 331. 



Grafton, W. Va., 370. 



Grand Pacific Glacier, 73. 



Grand Tower, 111., 171. 315. 



Granville, Ohio, 564, 603. 



Gravitation of the ocean toward the ice- 

 sheet, 503. 



Gray, Professor Asa, 513; list of Alaskan 

 plants identified by, 69; on distribution 

 of plants in the northern hemisphere, 

 422 et seq. 

 Great Lakes o" North America, 436; depth 

 o " ice over, 200, 201 ; erosion in beds of, 260 

 etseq.; formation of, 262, 356 et seq., 500, 

 501; Newberry on, 262, 356 et seq; pre- 

 glacial outlets of, 304 et seq.; glacial 

 drainage of, 313, 314, 317, 319; depths of, 

 356; influence of ice-barriers on, 390 et 

 seq. 



Great Miami River, 170, 300, 301, 323. 326, 

 327, 644. 



Great Salt Lake, 33'6, 607, 609. 



Greeley, A. W., on the Greenland glaciers, 

 102. 



Green Bay, Wis., 211, 9.12, 528. 



Green Mountains, 194; terraces on, 30. 



Greenland, the glaciers of, chapter on, 

 75-102; area of, 75, 93; interior condi- 

 tion of, 75, 84, 447; Nordenskiold on, 77; 

 Rink on, 77 et seq.; thickness of ice in, 

 77, 79, 82, 85, 201, 202, 503; rate of motion 

 of, 78, 80, 82 ; explorers of 80, Helland on, 

 80; subglacial streams of,82, 255; icebergs 

 from, 82, 85, 95, 235; Whymper on, 83 et 

 seq.; Kane on, 86 et seq., 93 et seq., 235; 

 Hayes on, 89 et seq. ; north of 79°, 92 ; on 

 the eastern coast, 97; Nansen on, 98; 

 Erichsen on, 99; erosion in, 253, 255, 256; 

 Marr on, 366; Preglacial plants of, 424, 

 425, 430, 462; Preglacial climate of, 380, 

 463; insects of, 439; cause of glaciers in, 

 463; during the Glacial period, 527; post- 

 glacial elevation of, 507. 



Grinnell Expedition, 86. 



Grinnell Land, glaciers in, 102; post-glac- 

 ial elevation of, 583. 



Grooves. See Rock Scoring. 



Grote, Mr. A. R., on the White Mountain 

 butterfly, 439 et seq. 



Ground moraine. See Till. 



Gulf of Mexico, 416, 472. 



Gulf Stream, possible changes in, 495, 508, 

 effeet o., on the Atlantic, 469; cause of, 

 470 et seq. 



Guyandotte River, 379, 381, 38^, 604. 



Haenke Glacier, 32. 



Haenke Island, 31. 



Hall, Professor James, 500; on elevation 

 of bowlders, 248; on drift hills of New 

 York, 286; on rate of recession of Niag- 

 ara Falls, 539. 



Hamilton county, Ohio, 242, 602. 



Hamilton, Ohio, 128, 131, 600,614. 



