Catalogues of Rocks and Mlatrah. 269 



90, Serpentine Middlefield, with Magnetic oxjde of 

 Iron. 



90. Whinstone (\Nest [Jill) 



91. Brown Hematite (Lenox) 



92. Talcose slate (West of Williamslown) 



93. Schorl in mica slate. 



94. Actynolite, 



95. Magnetic Iron Sand — great falls thirty-five miles 

 above Glenn's Falls. 



96. Oxyd of Man^ane^e — Adams 



97. Gibsite {Dv, Torrcy) Richmond, Mass. 



IV, From Doctor Brown, of Kentucky, through Colonel 



GiBBS. 



98. Potrifactions, siliceous, calcareous, and even in some 

 cases agarizcd, chiefly of the coraJ family, entrochi, &:c. 

 also sulphate of Barytes with Galena — 6 miles north of 

 Naahvilie, Tenessce ; in the channel of a little creek com- 

 monly dry. Many of them, however, from the highest 

 lauds, from the plantation of Mr. Craighead. 



V. From Dr. Alfred Monson. 



99. A suite of the Chesterfield minerals — American sili- 

 ceous spar — tourmalines — sappar, &:c. very handsome. 



VI. From Messrs, Eaton and Beck. 



100. Petrifactions of the Helderburgh. 



101. Limestone in argillite Cahoes falls. 



102. Gray wacke — Norman's hill. 



103. Pentacrinite — terrebratulite, &:c. in sandstone in 

 Helderbergh. 



104. Schist of the Mowhawk at Niskeuna, full of 

 Pentacrinites — stytastrltes — terrebratulites. 



Siliceous slate, Bethlehem. 



105. Marls, clays, ochres, alum, &:c. Helderburgh. 



106. Pectinites in schist— Rensellaer county. 



107. Green coccolite in bluish crystallized carbonate 

 of lime— -very beautiful — Sheene — Essex Co. 



108. Encrinite — Marble jpolished and handsome Coey- 

 mans. 



Vol. V. 35 



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