268 Catalogues of Rocks and Minerals. 



64. Sandstone of this character is frequently observed as 

 the basis layer at the Palisadoes, New-Jersey. 



65. Greenstone, Pracknes mountain, New-Jersey. 



66. Quartz with rhombic cavities, that once contained 

 rhombic spar. — Pyritous copper, small crystals of quartz, 

 Fort Lee, New-Jersey. 



67. Prhenite, Patterson. 



68. Sulphuret of iron, Highlands in Bergen County, 

 New-Jersey. 



69. Sulphuret of copper, Schuyler's mine, New-Jersey. 



70. Chromate of iron, Staten Island. 



71. Galena, Columbia County, near Catskill. 



72. Carbonate of copper, with radiating groups of quartz, 

 Patterson. 



73. Red oxide of zinc, Sparta, New-Jeraey. 



74. Granite, Highlands, near Fort Montgomery. 



75. Quartz and decomposing felspar, Weehawk, New- 

 Jersey. 



III. From Professor Dewey. 



76. Gneiss — mica and clay and chlorite and steatitic 

 slate — granular limestone — gray wacke — sand stone — pud- 

 ding stone — with tourmaline and bitter spath imbedded. 



77. White fibrous Tremolite — one mass 21 inches by 9, 

 eflfervesces. 



78. Do. distinctly crystallized — isolated crystals like 

 those of the Alps. 



79. Siliceous slate — actinote of Middlefield, handsome. 



80. Calc. tufa and marl from Williamstown. 



81. Richmond stalactical hydrargylite bitterspath 



and green talc — Middlefield. 



82. Stalagmite — Sinter Lanesborough cave. 



83. Fetid Dolomite. 



84. Beautiful green talc Newtown Vermont, 



85. Siliceous limestone, Williamstown, 16 per ct. of si- 

 lex. 



86. Chalcedony — Middlefield — partly agatized and well 

 characterized. Very fetid quartz, Williamstown. 



87. Molybdena in Actynote, and steatite Middlefield. 



88. Staurotide in mica slate, Sheffield. 



89. Serpentine Middlefield. 



