642 



liEPORT ON NATIONAL MUSEUM, 1886. 



Page. 

 Mexico, specimons of hyperstliene andesito 



from 614 



specimens of limestone [marble] from.CtO, 611 



specimens of pumice from 615 



specimens of rhyolite from 613, 614 



specimons of rhyolito tuff from 613 



specimens of sandstone from 615 



specimens of travertine [Mexican onyx] 



from 611 



specimens of tuff from 611, 612 



il ica andesito, cliaracters of 440 



Micas, characters of the 295 



Michigan, limestones and dolomites In 400 



sandstones in 450 



slates in 467 



specimens of biotite gneiss from 556 



specimen of granite from 556 



specimen of quartzite from 556 



specimens of limestone from 555,556 



specimens of sandstone from 556 



specimens of slate from 556 



Microscopic structures of rocks 302 



Middlesex Quarry Company 290 



Minerals occurring in building and orna- 

 mental stones 292 



occurring in schists 441 



Minnesota, granites in 421 



limestones and dolomites in 400 



porphyry in 428 



sandstones in 451 



slates in 467 



specimen of calcareous dolomite from . 557 



specimens of gabbro from 558 



specimen of massive lahradorite from. . 558 



specimen of olivine diabase from 558 



specimen of quartzite from 558 



specimen of slate from 558 



specimens of diabase from 557, 558 



specimens of dolomite from 556 



specimens of granite from 557 



specimens of hornblende granite from . 557 

 specimens of hornblende mica granite 



from 557 



specimens of limestone from 557 



specimens of magnesian Umestono from 557 



specimens of quartz porphyry from . . . 557 



specimens of sandstone from 558 



specimens of siliceous dolomite from. . . 557 

 specimens of siliceous magnesian lime- 

 stone from 557 



Mississippi, sandstones in 452 



si)ecimen of argillaceous sandstone from 558 



specimen of limestone from 558 



specimens of sandstone from 558 



Missouri, granites in 422 



limestones and dolomites in 402 



marbles in 379 



porphyry in 428 



sandstones in 452 



specimen of ferruginous limestone from 501 



specimen of lithographic limestone from 561 



specimen of olivine diabase from 561 



specimen of quartzite from 562 



specimens of argillaceous limestone 



from 501 



Page. 



Missouri, specimens of biotite granite from. 501 



specimens of calcareous sandstone from 561 



specimens of dolomite from 560 



specimens of hornblende granite from . . 501 



specimens of limestone from 558, 559, 560 



specimens of magnesian limestone from 561 

 specimens of magnesian limestone 



[marble] from 5".8 



specimens of sandstone from 562 



specimens of siliceous dolomite from.. 500, 561 



Modulus of elasticity 492 



Montana, granites in 422 



marbles in 380 



sandstones in 452 



specimens of marble from 562 



specimens of hornblende mica granite 



from 562 



Mount "Waldo, granite quarries in 415 



Muscovite biotite granite 408 



structure of 303 



Muscovite granite 408 



X. 



Nebraskii, limestones and dolomites in 402 



specimens of argillaceous limestone 



from ... 562 



specimens of limestone from 562, 563 



Nero antico di Prato occurring in Italy 474 



Nevada, liparite in 430 



sandstone in 453 



specimens of quartz porphyry from 563 



Epecimens of hornblende andesito from 563 



specimen of sandstone from 503 



Nevadites or granitic liparites 429 



New Brunswick, red hornblendic granite in 485 



sandstones 486 



New England, early marble quarrying 288 



New Hampshire, granites in 422 



porphyry in 428 



elates in 468 



Boap-stone in 358 



specimen of biotite gneiss from 565 



specimen of steatite [soap-stone] from.. 563 

 epecimens of biotite epidoto gneiss 



from 505 



specimens of biotite granite from 564, 505 



specimens of biotite muscovite granite 



from 563,564 



specimens of muscovite biotite gneiss 



from r65 



specimens of porphyry conglomerate 



from 58 J 



New Haven marble .'!0'! 



New Jersey, diabase in i;;.') 



granites in 4.;! 



sandstones in l.").i 



serpentine in 300 



slates in 408 



specimen of biotite gneiss frora 505 



specimen of dolomite from 50") 



specimen of hornblende granite (?) from 505 



specimen of limestone [marble] from... 505 



specimen of serpentine [ophiolite] from 505 



specimen of slate from 567 



