262 



NEW YORK STATE MUSEUM 



Economic. 



PLATE PACING PAGE 



CV. Precambrian, Granite Quarry, Round Island, near Peekskill, 



"Westchester county 182 



CVI. Potsdam Sandstone, Clarkson's Quarry, three miles south of 



Potsdam, St. Lawrence county 188 



XVIII. Potsdam Sandstone, Quarry of Merritt & Tappan, three 



miles south of Potsdam, St. Lawrence county 144 



CVII. Calciferous-Trenton Limestone, Metamorphosed; Marble 



Quarry, Tuckahoe, Westchester county 198 



C VIII. Precambrian, Interior of Northern New York Marble Co.'s 



Quarry, near Gouverneur, St. Lawrence county 198 



XVI. Precambrian Marble, E. E. Stevens Quarry, three miles south 



of Canton, St. Lawrence county 140 



XVII. Precambrian, Empire Marble Co.'s Quarry near Gouverneur, 



St. Lawrence county 140 



CIX. Calciferous-Trenton Limestone, Metamorphosed ; Limestone, 



Qrarry, Tomkins Cove, Eockland county 206 



XXIX. Calciferous-Trenton Limestone, Metamorphosed; Marble 



Quarry, Sing Sing, Westchester county 146 



CX. Lower Helderberg Limestone, Quarry in ; South Bethlehem, 



Albany county 206 



CXI. Corniferous Limestone. Road Metal and Paving Block 

 Quarry of the Barber Asphalt Co., near Humboldt Park- 

 way, Buffalo, Erie county 206 



CXII. Stone Crushing Plant of the Barber Asphalt Co., Buffalo, Erie 



county „ 206 



CXIII. Pleistocene Brick Clays, Haverstraw, Eockland county 210 



CXIV. Trenton Limestone, Quarry in; Saratoga county, south bank 

 of Hudson Kiver, opposite Glens Falls. Rock quarried for 



quick lime 222 



CXV. Waterlime Group ; Interior View of Cement Mine at Rosen- 

 dale, Ulster county 222 



CXVL Waterlime Group ; Cement Quarries, one mile south of 



Whiteport, Ulster county 222 



CXVII. Lower Pentamerus and Tentaculite Limestone, Quarry in; 



Howe's Cave, Schoharie county 222 



CXVIII. Quarry of the Buffalo Cement Co. Buffalo, Erie county 222 



CXIX. Quarries of the Buffalo Cement Co. Buffalo, Erie cdunty. .. 222 

 LXIV. Quarry of the Cummings Cement Co. Akron, Erie county.. 156 

 LXV. Waterlime Group, Old Mine of the Newark Cement Co. 



Rondout, Ulster county 156 



