758 



INDEX. 



Pipestone county, Minn., 353. 



Piscataqua River, 342, 352. 



Pittsburgh, Pa., 370, 375, 384. 



Plainfield, N. J., 140, 142. 



Plains, the Western, uplifted in the Qua- 

 ternary period, 502. 



Plants, in the clay deposits of the Monon- 

 gahela, 392; migrations of, during the 

 Glacial period, chapter on, 422-444; pre- 

 glacial distribution of, 422, 430; Professor 

 Asa Gray on, 422 et seq. ; resemblance of, 

 in Japan and eastern North America, 

 423, 432; manner of migration of, 424; of 

 the Pacific coast of North America, 426, 

 435; of Japan and North China, 427, 434; 

 of Europe, 427; of the Tertiary period, 



428, 430; effect of Glacial period upon, 



429, 431, 433; the birthplace of, 432; on 

 oceanic islands, 436; list of, common to 

 the Okhotsk-Kamchatkan region and 

 North America, 441-444. 



Platte River, 172, 177, 414, 416. 



Plum Creek, Ohio, 565-568, 575. 



Plum Island, 140. 



Plymouth county, Mass., 137, 139, 360. 



Plymouth Rock, Mass., 238. 



Pocatello, Idaho, 3o7. 



Pocono Mountain, terminal moraine on, 

 133, 146, 148, 526; depth of ice over, 198; 

 bowlders on, 241. 



Pohlman, Dr., on the Niagara gorge, 540. 



Point Pleasant, Ohio, 36. 



Point Wilson, state of Washington, 182. 



Polar ice-cap, 179, 192. 



Pomp's Pond, Andover, Mass., 572 et seq. 



Port Foulke, 89, 92. 



Port Jervis, 314. 



Port Townsend, 180, 182. 



Portland, Me., 349. 



Portland, Ore., 21, 39, 40, 135. 



Portland, Pa., 352. 



Post-glacial erosion, 590; in gorge of Niag- 

 ara, 269, 536 et seq. ; of Mississippi, 315, 552 

 et seq.-, of Paint Creek, 561, 562; in Rac- 

 coon Creek, Ohio, 564, 565; in Plum 

 Creek, Ohio, 565-568; in Lake Michigan, 

 571. 



Post-glacial oscillations of level, 504-506. 



Pot-holes, in Grafton county, N. H., 331; 

 in Lackawanna county, Pa., 332; at Mat- 

 tawan, Can., 543. 



Potomac River, 671. 



Potter county, Pa., terminal moraine in, 

 149; depth of ice in, 195. 



Powell, Major J. W., 498. 



Pratt, Archdeacon J. H., 497. 



Precession of equinoxes, 467, 468, 509, 511. 



Preglacial climate, 463. 



Preglacial drainage, chapter on, 298-312; 

 lower levels of, in the Ohio Valley, 300 

 et seq. ; erosive effect of, 300; buried chan- 

 nels of, 301 et seq. ; in the vicinity of Cin- 

 cinnati, 301; in central Ohio, 302; in the 

 vicinity of Minneapolis, 303; between 

 Lakes Erie and Ontario, 303; in southern 

 tributaries to Lake Erie, 304; between 

 Lakes Huron and Ontario; 304; in the 

 Mohawk Valley, 305; in Illinois, 306; in 

 western Pennsylvania and western New 

 York, 307, 308; in eastern Pennsylvania, 

 311; in the Province of Quebec, 312. 



Preglacial elevation, 502. 



Preglacial erosion, extent of, 226 et seq., 261, 

 279, 298 et seq., 353, 540, 542, 562, 564. 



Preglacial terraces, 372. 



Preglacial topography, 590. 



Preglacial weathering of strata, 513. 



Prehistoric wooden structures of Naaman's 

 Creek, 675. 



Prestwich, Professor Joseph, 498, 511, 514, 

 517, 624; on length of Glacial period, 613 

 et seq. 



Prince William Sound, 36. 



Provincetown, Mass., 137. 



Puget Sound, 136, 176, 180, 192, 193. 



Pumpelly, Professor Raphael, 513, 517; on 

 preglacial erosion, 261, on' loess, 407 et 

 seq. 



Putnam county, W. Va., 379, 604. 



Putnam, Professor F, W., 642; on his dis- 

 coveries of palaeolithic implements, 627; 

 on antiquity of man in California, 698, 

 699. 



Puyallup River, 21. 



Pyramid Lake, Nev., 607. 



Pyrenees, 429, 433, 436, 449 ; ancient glaciers 

 in, 512. 



QuAppelle River, 333, 335. 



Quebec, Province of, 570. 



Queechee, Vt., 247. 



Queen Charlotte Islands, 506. 



Queen Inlet, 73. 



Queenston, Can., 536 et seq., 550. 



Raccoon Creek, Ohio, 324, 564, 575, 603. 

 Ramsay, Sir A. C, theory of rock basins, 



269; on early glaciation, 483 et seq. 

 Randolph, N. Y., 149. 

 Rangeley Lakes, 342, 349. 

 Ravenna, Ohio, 353. 

 Read, Mr. M. C, on buried channels in 



Ohio, 301. 



