14 On the Mineralogy of Phila. County, Penn. fyc. 



I have merely given a catalogue of these minerals, as an elab- 

 orate and detailed account of them, has been published by Dr. 

 Samuel G. Morton, of Philadelphia, in the Journal of the 

 Academy of Natural Sciences of Philadelphia, for June, 1827. 



Philadelphia County. 



Sil.-calcar. oxide of titanium, in olique four sided prisms, at 

 Radner's mill, near the falls of Schuylkill, also on the 

 township line road, near Rittenhouse's smith shop. 



Phosphate of lime, massive, and in hexahedral prisms, imbed- 

 ded in feldspar, on the township line road, same locality. 



Graphite, massive, in gneiss rock, on Robinson's hill, on the 

 Schuylkill, five miles from Philadelphia. 



Limpid quartz, in hexahedral prisms, with pyramidal termi- 

 nations, in detached crystals, same locality. 



Chalcedony, on Longstroth's farm, near the York road, five 

 miles from Philadelphia. 



White beryl, in granite, hexahedral prisms, in Day's cave, 

 near the residence of William Wister, Esq. 



Graphic granite, and laminated feldspar, same locality. 



Cyanite, in bladed crystals, from a pale to a deep sky blue, 

 in granite, near Livezly's mill, on the Wisahicon. 



Tourmaline, of a velvet black color, in hexahedral prisms, 

 near Rittenhouse's paper mill, on the Wisahicon. 



Hematite, (brown oxide of iron,) in mammilary masses, near 

 Jacob Wise's mill, on the Wisahicon. 



Red oxide of titanium, massive and crystallized, in clay slate, 

 on Wise's lane, near Wisahicon. 



Limpid quartz, in pyramidal clusters and drusy aggregates, 

 same locality. 



Smoky quartz, highly transparent, near the township line 

 road, six miles from Philadelphia. 

 My friend Mr. John Wister, of Germantown, has obtained 



very fine specimens from each of the above localities of 



Philadelphia county. 



Having on hand duplicates of all the above minerals, with 



an extensive collection from other localities, I shall be happy 



to exchange them for those from other districts. 



George W. Carfenter, No. 221, Market street. 



P. S. The manufactory of porcelain at Jersey city, one of 

 the two mentioned in the above account, has we understand 

 been discontinued, and that at Philadelphia, is stated to be 

 the only one in the United States. — Ed. 



