Miseellaneous Localities of Minerals. 219 
moted the advancement of this science, in Chester county. 
We hope to be excused for introducing in this catalogue, 
several minerals which we believe have been before noticed ; 
as they have been heretofore described in such an indefinite 
manner, (as to location,) that the description is, in a great 
measure, useless to the travelling mineralogist. In several 
instances, the area of a whole township is given for the lo- 
cality of a small crystal, which would, either not attract 
notice, or elude the scrutiny of the best observers. We 
have therefore, been particular, in every case where circum- 
stances would permit, to refer the locality of each mineral te 
some permanent and conspicuous object, by which it may be 
readily found by the inquiring traveller. 
Yours, very respectfully, 
G. W. CARPENTER; 
GEO. SPACKMAN. 
On the Minerals of Chester county, West Goshen Township. 
1. Chalcedony, of an extremely fine texture, and of vari- 
ous shades of colour, which appear in stripes and circles, 
beautifully arranged, forming veins from 3 an inch to 3 inches 
thick in serpentine. On the ridge, 11 miles north of West 
Chester. 
2. Jasper, yellow and red, of fine and beautiful texture, » 
On the serpentine ridge, 14 miles north of West Chester. 
3. Brown Hematite, in stalactical and mammillary masses. 
Serpentine ridge, at the locality of the Jasper. 
4, White Indurated Talc. Same locality. 
5. Amianthus, forming veins in serpentine; in Joseph 
Taylor’s quarry, 1 mile north of West Chester. 
6. Zircon in sienite: in Bath Woods, half a mile north of 
West Chester, near a spring. 
7. Carbonate of Magnesia, in fine acicular crystals, forming 
a thin vein in serpentine, in Joseph Taylor’s quarry, 1 mile 
north of West Chester. 
8. Cereolite, in the serpentine quarry of Joseph Taylor. 
7. Drusy Quartz, abundant on the serpentine ridge, near 
the locality of Chalcedony, 14 miles north of West Chester. 
10. Magnetic oxyde of Jron, in octoedral crystals ; in Jo- 
seph Taylor’s quarry. : 
