CD.) 



LIST OF SPECIMENS IN THE ECONOMIC COLLECTION. 



Magnetic Iron Ores prom Northern New- York. 



1. A block from Moriah Mining Company, Humbug Ilill, Moriah, 



Essex Co. 



2. A large block from the Cheever Ore bed, Port Henry, Essex Co. 



3. A large mass of veinstone, with iron ore, from a vein cutting the 



Cheever Ore bed. 

 4 & 5. Two smaller blocks from the Cheever Ore bed. 



6, One large block of crystallized magnetic ore from the ^ew Bed, 



Moriali, Essex Co. 



7. A smaller block from the same bed. 



8 & 9. Two large blocks, from Wetherbe, Sherman & Co., Old Bed or 

 No. 21, Moriah, Essex Co. 



10. One block from Ore bed, Moriah, Essex Co. 



11 & 12. Two blocks of Iron ore from Adirondac region, sources of the 



Hudson river. Name of particular vein not known. 

 13 & 14. Two blocks of Iron ore, with feldspar. French Mountain. 

 Red Hematite. One block from Clinton, Oneida county. 



Specimens illustrating some of the Building Stones of the 



State of New York: 



Laurentian System. 

 Granite or fine-grained Gneiss. 



1. A large block with surface not dressed, squarely broken. 



2. A large irregular block of the same, showing in part a weathered sur- 



face and regular even fractured sides. 



3. A cube of about six inches, same rock, with the sides dressed, and one 



face showing the natural fracture. 

 These three are from the town of Greenfield, near Saratoga-springs. 



4. A large block of fine-grained gneiss or granite. A few miles northeast 



from the locality of 1, 2 and 3. 



5. A block of coarse gneiss from Luzerne, Warren county. 



6. A large block, two feet by eighteen inches, and — inches thick, very 



even in character and fracture. From the gneiss at Sacandaga 

 river at the crossing of the Adirondac railroad. 



Verde antique, or Serpentine Limestone. 



One large block, nearly two feet long by one foot wide and high. This 

 is placed outside the building. 



