Report of the State Geologist. 



443 



54. Slate (green). One-quarter mile east of Canaan Centre, Columbia. 



55. Talcose slate. Southwest side of Canaan gap, Columbia. 

 66. Slate. One-quarter mile south of Canaan Centre. 



57. Talcous slate. General Van Cortland's farm, south end of Gal- 



lows hill, one-half mile north-northwest of Peekskill, 

 Westchester. 



58. Mica and talcy slate. Bounding the iron ore bed on the east at 



Amenia/Dutchess. 



59. Magnesian slate. Top of Taconic mountain, between Williams- 



town, Mass. and Petersburgh, N. Y. 



60. Slate. Pleasant Plain, Clinton, Dutchess. 



61. Green slate. One mile southwest of Washington Hollow, 



Dutchess. 



62. Taconic slate. Petersburgh (foot of Taconic mountain). 



63. Green talcy slate. 



64. Magnesian slate. Summit Taconic mountain, between Williams- 



town and Petersburgh. 



65. Talcose slate. Summit of Williamstown mountain range, on the 



line of Massachusetts and New York, Hillsdale, Columbia. 



66. Limestone (at its junction with talcous slate). General Yan 



Cortland's quarry, Cortland, Westchester. 



67. Magnesian slate. Summit Taconic mountain, between Williams- 



town and Petersburgh. 



68. Slate (at the Hone hill, containing needleform schorl, Williams- 



town, Mass. 



69. Chlorite slate. Stephen Smith, Canaan, Columbia. 



70. Chlorite and carbonate of iron (in magnesian slate). Summit of 



Taconic mountain. 



71. Chloritic rock (the silver ore). Cleveland's, Natural bridge, 



Jefferson. 



72. Serpentine. Cleveland's, Natural bridge. 



Vertical Case. 



73. Limestone (in slate). Hanford, Dutchess. 



74. Sparry limestone. Warwick, Orange. 



75. Sparry limestone. Unionvale, Dutchess. 



76. Limestone (near the slate). Arthursburgh, Dutchess. 



77. Sparry limestone (near the slate). Hoosick, Rensselaer. 



78. Sparry limestone (slaty). Hoosick, Rensselaer. 



79. Sparry limestone. Bloomingrove, Orange. 



80. Slaty limestone. Ashford, Mass. 



81. Stockbridge marble (crystallized limestone), Dover, Dutchess. 



