INDEX. 



483 



Page. 



N'ative quicksilver, at Kattlesnake miue 377 



at Wall Street mine 375 



mode of occurrence 3*** 



precipitation of ^^O 



Neocomlan, at Knoxville 271 



atOathill 355 



in Mayacmas district 369 



in Solano County 378 



strata "8,460 



(See, also, Metaojorphic rocks and Aiicdla.) 



NcrtscUinsk district, Siberia, cinnabar in 45 



.115,401 



Net structure 



New Aluiaden district, geology of 310.467 



tissure system of. 3-8 



New Alm.aden mine, discovery of * 



plans and sections of 318 



Newberry, -T. S , cited 170, 448, no(c 



New Idria, Cbico-Tejon series at 215 



disti ict, geology of 291, 46u 



miue 301 



nonconformity at ^° 



sand.stone concretion flora ^^ 



New Idrian mine, Douglas County, Oregon 30G 



New Zealand, cinnab.ar in 49 



Nicholas, W., cited *^ 



Nichols, E.K., cited 233 



Nodules and pebble.s, theory of formation of 68, 455 



Niiggerath. A., cited 15,19,23,27,28,32,33,35,43,49 



Nonconformity, between the T^.jon and Miocene 218 



Post-Miocene 218,461 



Nonconformity, Post-Ncocomian 177, 188, 460 



at New Almadcn 313 



at New Idria -^° 



indirect evidence ol ^"-' 



on the Gold Belt 196 



paleontological evidence of 1^3 



Novlik, .1 , cited ' 



Nova Scotia, cinnabar in *** 



0. 



Oakland miue, Sonoma County 377 



Oakville mine, Napa County 377 



Oathill district, geology of 354,409 



Obsidian, andesilic 153,242 



basaltic 158, 252 



Oceanic mine, San Luis Obispo County 382 



Ocean View mine, San Luis Obispo County 382 



Olivine in andeaite 153 



Onofriteat Knoxville 285 



Opal 390,392 



at Great Eastern mine. Lake County 375 



at Great Eastern mine, Sonoma County 303 



at Great Western mine 360 



at Knoxville -81, 286 



atNewAImaden ■-• 327 



at Steamboat Springs 341 



Oppcrt,E., cited 47 



Orbigny, A. D.d'.cited 204 



Orcutt, C. E.. cited 213 



Ore, description of 387 



microscopical character of 389 



origin of 438, 475 



(See. ttho, Cinnabar.) 



Ore deposition, at Steamboat Springs 346 



at Sulphur ISank 209 



Page. 



Ore deposition, theories of 442 



Ore deposits, age of 417 



at Great Eastein mine 363 



at Great Western mine 359 



atKnoxville 281 



at Manzanita mine 367 



atNew Almnden 314,310,323,327 



atNow Idria 301 



a t S tearaboat 342 



at Sulphur Bank 257.203 



character of 410 



discussien of ■-... 387,471 



form of 405 



minerals in 387 



minor, descrip-ions of 30.), 470 



origin of 438 



relations of, to general geology 2_''i 



wall rocks of 391 



Oregon, Chico beds in 206 



cinnabar in 360 



Organic matter, concretions due to 66 



Oserski), A., cited 45 



P. 



Panoche district 379 



Panoche Grande mine, Fresno County 380 



Paso Roblcs hot springs 381 



Pavlow, A.cited 204,229 



Pebbles, formation of 71 



Pence's Ranch, Carboniferous fossils at 195 



Perez-Rosalos, V., cited 23 



Perowskite in opal 394 



Peru, cinnabar in 20 



Petersen, T., cited 100 



Ptliicker, L., cited 21 



Philippine Islands, cinnabar in 48 



Phillips, J.A., cited 3,23,352 



Phcenix mine, Napa Couii ty 371 



Phcenix No. 2 mine, Napa County 374 



P/ioirt« borings 207 



Phthanite 105 



Phylloxera, quicksilver used to kill 3 



Picacho mine, San Benito County 309 



Pinart, A. L., cited 202 



Pioneer mine. Lake County 376 



Pipe veins 411 



Pittsburgh mine. Lake County 376 



Pliny, cited 4,28 



Pliocene 219, 238 



probable at New Almadcn 314 



Point Reyes, cinnabar at 379 



Polar Star mine, San Luis Obispo County 382 



Pope mine, Napa County 374 



Portugal, cinnabar in 27 



Posepnyte at Great Western, analysis of 360 



Post-Pliocene described 219 



Potassic sulphide, action of, on cinnabar 419 



Potassic sulphydrate, action of, on cinnabar 419 



Prado, C. de, cited 18,42,397,399 



Primeval rocks 171 



Pseudodiabase 94 



analysis of 98, 99 



Pseudodiorite 94,99 



analysis of 101 



Pseudomorphism and substitution 396 



Pseudoraorplis, cinnabar after bjirite 397 



