INDEX. 535 



Page. 



Mammals, (fossil,) species: 



Palseosyoi^s major 359 



paludosus 359 



Paramys clelicatior 357 



tlelicatissimus 357 



delicatus 357 



Patriofelis ulta 355 



PJatygonns Ziegleri , 365 



Sciuravus nitidns ,.... 358 



undans 358 



Sinopa rapax 355 



Triaeodon fallax 357 



Trogosus castoridens 360 



vetnlus r 360 



Marsh Valley ,..-.. 244 



Medicine Bow coal-beds, fossil plants of 289 



Meek, F. B., preliminary list of fossils, by 373 



Meteorology, by J. "VV. Beaman 501 



Meteorological deductions 518 



tables , 503 



Missoula Valley 257 



Missouri, valley of tbe 262, 266 



Montana, northern section of 264 



northwestern section of 250 



southeastern section of 267 



southern section of 258 



Territory 248 



Mountains 210 



of the Great Basin 228 



Muddy Creek 284 



Musci, by L. Lesquereux. 498 



Nevada, valleys of , 271 



Niobrara bed, fossil reptiles of 327 



North Boulder Valley 263 



Northern part of Salt Lake Basin and Snake Kiver plains 237 



Orthoptera, Saltatorial, notes on, by C. Thomas 423 



new species : 



Acridium ambiguum 447 



frontalis , 448 



Anabrus coloradus 440 



Caloptenus Dodgei - 451 



griseus , 454 



occidentalis 453 



Turnbullii 452 



viridis 450 



Ceuthoj)hilus bilobatus 437 



castaneus 435 



pacificus 436 



pallidus 434 



Copiophora mucronata 444 



Decticus i)allidix)alx)us ' 442 



Locusta fuliginosa 443 



occidentalis. „ 444 



(Edipoda gracilis 461 



Haydenii 460 



Kiowa 461 



lougipennis 463 



Montana 462 



paradoxa 457 



undulata 460 



Wyomingiaua 462 



Opomala Wyomingeusis 446 



Oxycoryphus obscurus 466 



Pczotettix Nebrasconsis 455 



obesa ,. 454 



Stenobothrus bicolor 465 



Stenopolmatus fasciatus 434 



Thamuotrizon scabricollis 441 



