644 



REPORT ON NATIONAL MUSEUM, 1886 



Page. 



Paraffine as protection to stone 355 



Patent hammered finish 319 



Patten &. Rassell, sandstone quarry of.."... 290 



Peach Bottom slate in Pennsylvania 469 



Pean hammer used in stone-working 329 



Pearlite, variety of liparite 429 



Pegmatite granite 408 



'Pennsylvania — 



diabase in 436 



granites in 424 



limestone and dolomites in 405 



marbles in 382 



porphyry in 428 



sandstones in 459 



serpentine in 367 



slates in 409 



soap-stone in 359 



specimen of argillaceous sandstone from 590 

 specimen of biotito-raascovite gneiss 



from 586 



specimen of calcareous breccia from .. 586 

 specimen of calcareous dolomite [mar- 

 ble] from 586 



specimen of muscovite gneiss from 586 



specimen of quartz porphyry from 586 



specimen of sandstone [nearly quartz- 



ite] from 590 



specimens of biotite gneiss from 580 



specimens of calcareous breccia [mar- 

 ble] from 586 



specimens of calcareous dolomite from. 585 



specimens of conglomorate from 590 



specimens of diabase from 586 



specimens of dolomite from 585 



specimens of hornblende gneiss from .. 586 



specimens of limestone from 583, 584,585 



specimens of limestone [marble] from. 585, 586 



specimens of quartzite from 590 



specimens of sandstone from .587, 588, 539, 590 



specimens of serpentine from 583 



specimens of slate from 590, 591 



Peperino, used in Kome and Naples 464 



Perch, definitions of 524 



Phillips, DeaconJohn , 285 



Phlogopite, description of 296 



Phonolite, characters of 432 



Physical agencies aflfocting weathering of 



building stones 331 



Physical and chemical properties of 



rocks 302 



Pick used in stone-working 330 



Picrolite, North Carolina 307 



Pisolite (limestone) 372 



Pitching-chisel, used in stone-working 330 



Pitchstone 429 



Plagioclane 294 



feldspars 294 



Planers, use of 327 



Plucky, definition of 524 



Plug and feather 313, 330 



Plymouth marble, analysis of 390 



Pointed face fijilsh 319 



Point used in stone-working 330 



Polished surface finish 320 



Page. 



Polishing machines 326 



preparation of stone for 316 



putty, definition of 524 



Porosity of stone, testiui the 333 



Porphyritic, defi nition of 524 



diorite, characters of 439 



diorites, occurrence of 440 



Porphyry, composition of 427 



definition of 524 



origin of 427 



places of occurrence 428 



use of 427 



varieties of 424 



Portland stone in England 478 



Portor, or black and gold marble, from 



Italy 481 



Portugal, specimen of artificial stone from. 628 



specimen of bituminous limestone from. 626 



specimen of granite from 627 



specimenof hornblende andesite from. 627 

 specimen of limestone [stalagmiticj 



from 627 



specimen of marble from 627 



specimen of pozzuolana from 627 



specimen of slate from 627 



specimen of stalagmite [marble] from.. 627 



specimen of volcanic tuff from 628 



specimens of basalt from 627 



specimens of calcareous conglomerate 



from 626 



specimens of calcareous sandstone from 626 



specimens of dolomite from 626, 627 



specimens of limestone from.6Jl, 622, C23, 624, 

 625, 626. 



specimeniof mica granite from 627 



specimens of sandstone from 626 



specimens of shell limestone from 626 



Powder in quarrying, use of 313 



Preparation of stone for polishing 316 



Price-list of Italian marbles 511 



Prices of stone 510 



Proctor, Professor, politic limestones from. 399 



Protection by means of solution 354 



Protogine granite 408 



Pumice finish 320 



Pumice, variety of liparite 429 



Putty powder, definition of 524 



Pyroxene, characters of 297 



Q. 



Qualities of building stone 489 



Quarry, definition of 524 



Quarrying and dressing, methods of 310 



and splitting slate 318 



granite 311 



marble 311 



marble in Vermont 387 



sandstone 312 



slate for roofing purposes 291 



time of 351 



Quarry water, definition of 524 



Quartz, characters of 294 



porphyries, foreign 486 



porphyry „^, ,„..,. ,.,..,.„, 427 



