570 RKPORT ONT NATIONAL MUSEUM, 1S8C. 



Magnesiaii linieatone. liluo-gniy ; iiuo ; coiiipuct. Kingston, Ulster County. 



Quarry of Koon &, Madchiii. Tenth Census, 1880. 2GG17. 

 Dolomite. Upper Silurian ; darkdral); fine; compact. Rocliester, Monroe County, 



J. B. Pike's quarry. Tenth Census, It^SO. 2G454. 

 Calcareous dolomite. Upper Silurian; drab; finely Ibssiliferons. I^ocl^port, Ni- 



a,irara County. R. & J. Carpenter's quarry. Tenth Census, 1880. 2(mI:?. 

 Biotite granite. Fine; light gray. G.arrison, Putnam County. A. C. King's quarry. 



A. C. King, 1883. 27.^.31. 

 Hornblende mica granite. Coarse ; bright red. Grindstone Island, Jel'ferson 

 County. E. Forsyth's quarry. Tenth Census, 1880. 27024. 



NOTK. — Two large beautiful iiillarsof this stoni^ are in the senate cham- 

 ber of tlie capitol building at Albany, N. Y. 

 Hornblende gneiss. Medium; dark gray. Glenville, near Tarry town, Westchester 



County. Sackett's quarry. Tenth Census, 1880. 2(i4r)5. 

 Biotite gneiss. Medium; banded gray and white. Near Hastings, Westchester 



County. Quarry of Munson & Co. Tenth Census, 1880. 2tir)21. 

 Gneiss. Coarse; gi'cenish gray. SufFern, Rockland County. Copeland quarry. 



Tenth Census, 1880. 27050. 

 Norite. Coarse; dark greenish gray, ■with blue irridesccut spots. Quarries of the 

 An Sable Granite Company, Keeseville. C. D. Walcott, 1887. 38740. 



This stone, -which is known commercially as "Au Sable granite," con- 

 sists essentially of the mineral labi-adorite and hypersthene. When polished 

 the bluisli iridescence from the labradorite is very noticeable. It is a 

 beautiful stone for polished columns and pilasters. 

 Sandstone. Devonian ; brown ; very tine and compact. Roxbury, Delaware Conn l y. 

 Quarry of Robinson & Soop. Tenth Census, 1880. 25(52(5. 



Devonian ; brown; very fine and comi)act. Eoxhury, Delaware County. B.J}. 



Boughton's quarry. Tenth Census, 1880. 2.5627. 



Devonian ; gray ; fine and compact. Margarettville, Delaware County. Quariy 



of Grant Bros. Tenth Census, 1880. 25(528, 



Devonian; two specimens; brownish-gray and olive-tinted; fine and compact, 



Phoenicia, Ulster County. J. L. McGrath's quarry. Tenth Census, 1880. 

 25638. 



Devonian ; brownish gray ; fine and compact. Snider Hollow, Ulslm- (Jounty. 



Quarry of Jamieson Bros. Tenth Census, 1880, 25639. 



Devonian; dark blue-gr \ , fine and compact. Phoenicia, Ulster County. 



Quarry of Delemater A Bouse. Tenth Census, 1880, 25640. 



Devonian; dark blue-gray ; fine and compact. Phoenicia, Ulster County. J. 



McGrath's quarry. Tenth Census, 1880, 25641. 



Devonian; dark blue-gray; line and compact. Cold Brook Hollow, Ulster 



County. Quarryof Lane &. Co. Tenth Census, 1880, 25670. 



Devoni;i-u ; dark blue-gray ; fine ami compact. Near Boiceville, Ulster County. 



Quarry of Hewitt Boice. Tenth Census, 1880. 25671. 



Devonian ; dark blue-gray ; fine ;ind compact. Broadhead's Biidge, Ulster 



County. Quarry of Cornish & Ro wo. Tenth Census, 1880. 25(i7>. 



Devonian; dark blue-gray; fine and compact. Broadhead's Bridge, Ulster 



County. Quarry of W.Davis. Tenth Census, 1880, 2.'>673. 

 Devonian ; dark blue-gray ; fine and compact. Broadhead's Bridge, Ulster 



County. Quarry of Hemgerford & Boic(>. Tenth Census, 1880. 25(>74, 

 Devonian; dark blue-gray ; fine and compact. Stony Hollow, Ulster County, 



Sweeney's quarry. Tenth Census, 1880. 25704. 



