242 Reéxamination of American Minerals. 
Art. XXIV.—Reéramination of American Minerals: Parr V. 
—The Minerals of the Wheatley Mine in Pennsylvania.— 
Anglesite ; Cerusite; Wulfenite ; Vanadate of Lead ; Pyro- 
morphite; Mimetene; Galena; Copper; Copper Pyrites ; 
Malachite ; Azurite; Blende; Calamine ; Hematite ; Fluor 
Spar; Cale Spar ; Sulphur, &c. ; b Lawrence Smirs, 
y J. 
_ “. MLD., Prof. Chem. Med. Depart. University of Louisville.* 
¢ 
? 
. (Communicated to the Am. Scientific Association, August, 1855.) 
Berore describing the minerals of this mine, it is well to saya 
word with reference to its location, and also to quote some re- 
marks on the geology of the surrounding country by Prof. H. D. 
Rogers. Although this is departing from the plan usually adopted 
in this series of papers, still the occurrence of all the minerals, 
here described, at one locality, cannot but render the geology of 
the place interesting to mineralogists. 
his mine is situated in Chester Co., near Phcenixville, Penn- 
sylvania, and is one of several interesting developments of a 
thorough and very able exploration of this region by Mr. Charles 
M. Wheatley. At the request of Mr. Wheatley, Prof. Rogers 
made a geological examination of the metalliferous veins of this 
district, and the following remarks are taken from his report. 
** These veins belong to a group of lead and copper-bearing lodes 
of a very interesting character, which form a metalliferous zone, that 
ranges in a general east and west direction across the Schuylkill River, 
near the lower stretches of the Perkiomen and Pickering Creeks in 
“ The individual veins of this atet numerous group, are remarka- 
ble for their general mutual parallelism, their average course being 
about N. 31°—35° E. by compass, and not at all coincident with that of 
the belt of country which embraces them. ‘They are true lodes oF 
red shale and sandstone strata. 
“‘ This vein varies in thickness from a few inches to about two anda 
__* Lam indebted to Prof, J. D. Dana for th matical descriptions 
of the crystals given beyond—v. x s. a 
