SCIENTIFIC INDEX. 



691 



Mica, 38, 143, 569; mica slate, 43. 



Mica schist, masses of, in gneiss, 597. 



Microscopic characters of building stones, 145, 

 147, 153, 155, 164, 172,176,177,179,180,182. 



Millstones, quartzyte used for, 555. 



Mineralogy, 32 f . n., 52 f . n. See Lithology. 



Mineral springs, 264, 402, 414, 465, 488, 532, 

 586, 610, 645. 



Mining for gold, 95; for coal, 579. 

 Also see Copper, Iron ore, and Lignite. 



Minneapolis and St. Louis railway, elevations, 

 380, 409, 634. 



Minnesota lobe of the ice-sheet, 406, 479, 481 , 

 484, 640. [642, 667. 



Minnesota valley in the glacial period, 580, 622, 

 preglacial erosion, 432, 439. 

 glacial lake, 461 f. n., 606, 622, 642, 663. 



Mississippi river system, 133; extension in the 

 glacial period, 101, 622. 



Mississippi valley, erosion, 241. 



Modified drift, 118, 127, 444, 480; Houston 

 county, 228; Winona, 261; Fillmore,311-313, 

 317; Olmsted, 344; Mower, 364; Freeborn, 

 385-8; Steele, 401; Blue Earth, 444; Fari- 

 bault, 464; Jackson, 496; Clay county, Iowa, 

 508; Nobles, 527; Pipestone and Rock, 544-5; 

 Brown and Bed wood, 580-3; Yellow Medi- 

 cine, Lyon and Lincoln, 606; Big Stone and 

 Lac qui Parle, 624; Le Sueur, 640, 642; Rice, 

 662-9. 



Modified drift, contained in the ice-sheet, 444, 

 480, 626, and exposed on it by melting, 387, 

 665, 668. 



of the earlier glacial epoch, 581, 625. 

 rate of deposition, 588. 

 Also see Rames, Terraces, and Loess. 



Moose, 29, 30. 



Moraine, buried, 607, 626. 



Moraine, medial, 504, 506. 



Moraines, terminal: Freeborn county, 377, 385; 

 Steele, 399; Waseca, 406; Faribault, 462; 

 Watonwan and Martin, 478, 484; Cotton- 

 wood and Jackson, 495, 505; Murray and 

 Nobles, 520, 527; Pipestone, 544; Brown and 

 Redwood, 581; Yellow Medicine, Lyon and 

 Lincoln, 596, 601; Big Stone and Lac qui 

 Parle, 621; Le Sueur, 633, 640; Rice, 660-2. 



Moraines, terminal, formation of, 406, 640. 

 in Ohio, 463 f. n. 



Also see Altamont, Gary, Antelope, Kicster, 

 Elysian, Waconia and Havre moraines. 



Mounds, aboriginal, 3 f. n., 235, 266, 365, 403, 

 414,471,489,516,532,588,612, 631, 647, 673. 



Mounds, articles found in, showing recent date 

 of burials, 489, 647. 



Mower county, chapter on, 347. 



Situation and area, 347. 

 Surface features, 347. 



Natural drainage, 347. 



Water-power, 348. 



Topography, 348. 



Elevations, 349. 



Soil and timber, 35(1. 



Trees and shrubs, 351. 

 Geological structure, 352. 



Cretaceous, 353. 



Devonian limestones, 357. 



Hudson River rocks, 361. 



Galena and Upper Trenton, 362. 



Drift, 362. 



Ancient peat, 363. 



Mounds, 365. 

 Material resources, 365. 

 Murchisonia, 300. 



Murray and Nobles counties, chapter on, 517. 

 Situation and area, 517. 

 Surface features, 518. 



Natural drainage, 518. 



Topography, 519. 



Elevations, 522. 



Soil, 523. 



Timber and prairie, 524. 

 Geological structure, 526. 



Glacial and modified drift, 526. 



Terminal moraines, 527. 



Wells, 528. 

 Material resources, 531. 



Water-power, 531 . 



Stone, lime, bricks, peat, 531. 



Springs, 532. 

 Aboriginal mounds, 532. 

 Mus bursarius, 32 f. n. 

 Muskrat, 37, 525. 



Niagara limestone, 302, 356. 

 Niobrara group, 308, 576. 

 Nishnabotany sandstone, 308. 

 Nobles county, Murray and, chapter on, 517. 

 See Murray county for contents of chapter. 

 Norway pine, 138. 

 Nucleospira, 360. 

 Nucula cancellata, 600. 



Oaks, 214, 247, 279, 653. 

 Ocher, 619, 639. 

 Olenidse, 638. 



Olmsted county, chapter on, 325. 

 Situation and area, 325. 

 Surface features, 326. 

 Natural drainage, 326. 

 Springs, 326. 

 Water-power, 327. 



