G46 



REPORT ON NATIONAL MUSEUM, 1886, 



Page. 



Segregated, definition of 525 



Selection of building stono 345 



Serpentine, California 302 



characters of 29S 



composition of 3G1 



Connecticut 303 



definition of 525 



I Klawaro 384 



Maine ' 304 



Maryland 364 



Massachusetts 305 



Now Jersey 3GG 



Now York 300 



North Carolina 367 



origin of 301 



Pennsylvania 307 



specific gravity of 305 



uses of 301 



Vermont 308 



of tho various States and Territoriea - 302 



Serpontinous rocks, England 473 



Italy 474 



Sbaler & Hall, sandstone quarry of 290 



Shaler, Professor 285 



on clay slats for rough building 407 



Sheldon & Slason, quarries of 317 



Shell limestone, definition of 525 



characters of 373 



Shell sand-rocks, character of 373 



Shurtleff, quoted 285 



Siliceous, definition of 525 



rocks 307 



sandstones 445 



Slato belts in Vermont 471 



Slate, colors of 405 



composition and structure of 401 



for roofing purposes 291 



for tombstones, use of 291 



quarries in United States, amount in- 

 vested in 291 



quarrying and splitting of 318 



quarrying in United States, early 291 



sawing 319 



statistics of shipment from Slatington 



rogioninl882 470 



table of sizes for roofing 405 



uses of 405 



Slates, Canada - 488 



foreign 488 



Georgia 406 



Maine 406 



Maryland 460 



Massachusetts .. 460 



Michigan 407 



Minnesota 467 



New Hampshire 408 



New Jersey 408 



New York 468 



Pennsylvania 409 



places of occurrence of 400 



South Carolina 470 



Texas 470 



Vermont ' 470 



Virginia 471 



Sledge-hammers used in stone-working ... 330 



Page. 



Smith, Dr., teats of air quoted 336 



Soapstone, Arkansas 358 



composition and uses of 357 



District of Columbia 358 



Massachusetts 358 



New Hampshiro 358 



Now York 358 



North Carolina 358 



Pennsylvania 359 



of the various States and Territories .. 358 



Sooth Carolina 359 



Texas 359 



Vermont 359 



Virginia 360 



Solt soapand alum solution for protecting 



stone 355 



Solvent action of acids affecting weather- 



ingof building stones 338 



South America, export of slato to 291 



specimens of building stono from 616 



South Carolina, granite in 425 



slates in , 470 



soap-stone in 359 



specimen of limestone from 592 



specimens of biotite granite from 592 



specimen of steatite (?) [soap-stone] from 592 



Spain and Portugal, building stones of 483 



Spain, specimen of calcareous tufa from . . 629 



specimen of dolomite from 629 



specimen of sandstone from 629 



specimen of slate from 629 



specimens of calcareous breccia fmar- 



blcl from 628 



specimens of calcareous sandstone from . 629 



specimens of gypsum from 629 



specimens of limestone from 028, 629 



specimens of limestone [marble] from . . 628 



specimens of shell limestone from 629 



Spalls, definition of 525 



Specific gravity of granite 408 



of limestones 491 



of sandstone 492 



of serpentine 365 



of stones . 334 



of stones, table of 494 



Specular iron ore, characters of 201 



Spider-web, definition of 525 



Split rock, definition of 525 



Splitting-chisel used in stone- working 330 



Square drove finish 320 



Stalactite, description of 372 



Stalactitic marble, definition of 525 



Stalagmite, characters of 372 



Steatite, characters of 298 



Stock, definition of 525 



Stono structures in tho United States, list 



of tho more important 515 



Stone- working, machines used in 320 



Stones of foreign countries 473 



Strata, definition of 525 



Stratified, definition of 525 



granites (gneiss) 441 



Streaked, definition of 525 



Strength of building stono 490 



Strike, definition of 525 



