576 KEPORT ON NATIONAL MUSEUM, lH8li. 



Biotite gneiss. Fine; light gray. Near Rtileigli, Wake Comity. W. C. Kerr, 1883. 

 29G39. 



Coarse; light gra-y ; iudiKtiiictly porphyritic. Ten miles uortli of Greens- 



borough, Guilford County. C. II. Scott, 1883. 27593. 



Medium ; light gray. Jamestown, Guilford County. C. TI. Scott, 1883. 27G11. 



Gneiss. Fine; piulc. Concord, Cabarrus County. AV. II. Kerr, 1880. 27019. 

 Hornblende biotite gneiss. Medium ; dark gray. Near Alexander, Buncombe 



County. W. C. Kerr, 1883. 27C07. 



Medium ; dark gray. Davidson College, Meckleuburgli County. D. Sloun's 



quarry. W. H. Kerr, 1883. 27(543. 

 Gneiss. Fine; red and light mottled. Mooresville, Iredell County. Quarry of 



McNeilly & McPherson. W. H. Kerr, 1883. 27(547. 

 Hornblende gneiss. Fine; light greenish gray. Morgan ton Dciiot, Burke County. 



Avery's quarry. W. II. Kerr, 1883. 27G39. 

 Quartz porphyry [leopardite]. White; black spotted ; 4 by 4 by 1^ inches. Near 



Charlotte, Meckleuburgh County. W. J. Yates quarry. Teuth Census, 1880. 25840. 



Nearly white with dark spots. Charlotte, Mecklenburgh County. Centennial 



1876. 10770. 



These porphyries take the popular name " leojiardite" from their spot- 

 ted appearance. In some cases the coloring material instead of being 

 arranged in oval spots takes most delicate dendritic or fern-like forms. 

 They are very hard and consequently' used only lor ])nrpose8 of rough con- 

 struction. 

 Sandstone. Triassic ; tine: reddish brown. Wadesborough, Anson County. W. C. 

 Kerr, 1883. 27608. 



Triassic; fine; light brown. Sanford, Moore County. J. W. Scott's quarry. 



W. H. Kerr, 1883. 27634. 



Triassic; lino; light brown. Egypt, Chatham County. J. Legroves's quarry. 



W. H. Kerr, 1883. 27635. 



Triassic; light colored; medium. Durham, Durham County. Traj» quarry 



W. C. Kerr, 1883. 27651. 



Triassic; fine; reddish brown. Near Durham, Durham County. Quarry of 



Needham & McPhersou. W. C. Kerr, 1883. 27652. 



Triassic; line; very light hrown. Near Morris\ille, Wake Couuty. Gift of 



the county through W. S. Yeatcs, 1884. 36852. 



Fiue ; gray ; 10-iuch cube. Ealeigh, Wake County. Ceutcuulal 1876. 17475. 



Limestone. Lower Silurian; dark gray. 12 by 13 by 7 inches. Centennial, 1876. 

 25198. 



Lower Siluriau ; dark gray. 14 by 14 by 8 inches. Centennial, 1876. 25199. 



Devouian ; drah ; fine; compact. Kelley's Island, Erie County. Quarry of 



Kelley & Co. Teuth Census, 1880. 26284. 



Devonian. Bellefontaine, Logan County. Quarry of Angel, Miller & Co. 



Tenth Census, 1880. 27162. 



Carboniferous; drab; fine; compact. Two specimens. Bellaire, Belmont 



County. Samuel Rowe's quarry. Tenth Census, 1880. 25613. 



Upper Silurian ; light colored. 12-inch cube. Covington, Miami Qounty. T. 



W. Butt's quarry. Tenth Census, 1880. 27200. 



Upper Siluriau ; dark ir.ottlcd ; tine grained. Two specimens. Pi<[ua, Miami 



Couuty. Quarry of 11. Clark & Sou. Tenth Census, 1880. 25317. 



