INDEX. 



Absorption of stone, ratio of 333 



Accessory minerals, definition of 292 



Acid gases on sandstone, effect of 345 



Acidic rocks 307 



JEolian rocks, definition of 521 



Africa, limestones and marbles in 475 



specimens of building stones from 629 



Alabama, limestones and doloaaites in 392 



marbles in 374 



sandstones in 445 



specimens of limestone from 526 



specimens of marble from 526 



specimens of sandstone from 526 



Alabaster, composition of 370 



Italy 473 



uses of 370 



Algeria, specimens of marble from 629 



Allan, Hon. Alanson, opened first slate 



qnarry near Cornwall, Vt 471 



Ampbibole, characters of 296 



plagioclase rocks 439 



Amygdaloid, variety of melapbyr 438 



Analysis of Plymouth marble 390 



of serpentine 365 



Andesite, characters and structure of 440 



Antique porphyry, use of 433 



Aragonite, character of 298 



Argentine Confederation, specimens of 



building stone from 616 



Argillaceous, definition of 521 



fragmental rocks 464 



rocks 307 



sandstone 445 



Arizona, sandstone in 445 



specimen of limestone from 526 



specimens of sandstone from 526 



Arkansas, limestones and dolomites in 392 



marbles in 375 



sandstones in 445 



soapstone in 358 



specimens of elffiolite syenite from . . . 526, 527 



specimens of limestone from ■ 527 



Arkose, definition of 445 



Ashlar masonry, definition of 521 



Asia, specimens of building stone from 631 



Augite andesite, character of 440 



granite 408 



hornblende gneiss 413 



• plagioclase rocks 432 



Page. 

 Augusta and New York Granite Company. 287 

 Augusta and Philadelphia Grarite Com- 

 pany 287 



Augusta Blue Ledge Company 288 



Au Sable granite or norite 437 



Australia, export of slate to 291 



specimens of building stone from 633 



Austria, marbles of 479 



Ax-hammered face finish 319 



Ax used in stone- working 329 



B. 



Back joints in rocks 310 



Bardiglio, definition of 521 



veined marbles from Seravezza quar- 

 ries 480 



Basalt, characters of 438 



places of occurrence of 438 



Basic rocks 307 



Bastard granite, definition of 521 



Bates, Mr., opened granite quarry at Sandy 



Hook 287 



quarries, granite in 1824 419 



Bath oolite in England 477 



Bavaria, specimen of granite from 617 



specimens of lithographic limestone 



from 617 



Bedded, definition of 525 



' ' Bedford ' ' limestones in Hlinois 396 



shale in Ohio 456 



Belgium, marbles in 476 



specimens of marble from 617 



Berea grit, characters of 457 



chemical composition of 458 



in Ohio 456 



properties of 457 



quarrying of 313 



use of 443 



Berea shale in Obio 456 



Bermuda, building stones of 477 



specimens of coralline limestone from. 610 



Bibliography of works on building stone . . 519 



Biotite granite 408 



in Maine 413 



in Massachusetts 420 



Bird's-eye griotte, variety of griotte 478 



marble 378 



marble, definition of 521 



635 



