1892.] NATURAL SCIENCES OF PHILADELPHIA. 195 



the basal planes being rounded and the crystal being not unlike 

 stone arrowheads in form. 



Chester Township. In the village of Upland on Chester Creek 

 near Chester, in a quarry formerly worked by Henvis, chabazite of 

 a red color was found. One specimen in possession of Michael 

 Bradley of Chester has with the chabazite, pectolite. Some good 

 crystallized orthoclase of a flesh color was found. 



On the Samuel Felton farm, Thurlow, is an altered natrolite in a 

 schistose rock. 



At Ship Creek, a tributary of Chester Creek, near Upland in 

 Samuel Crozer's quarry, garnets coated with autunnite, and one fine 

 doubly terminated crystallized oi'thoclase was found. 



In Shaw and Esray's quarry, near Chester, have been found 

 tourmaline, garnet (one as large as a man's fist) crystallized ortho- 

 clase, beryl, mostly in process of alteration, but good crystals of a 

 pale green color ; smoky quartz in large crystals. I have one in my 

 possession, fourteen inches long, one foot wide and about seven 

 inches thick, two planes of the prism being developed at the expense 

 of the four remaining. An amethyst of the same size and form was 

 also found here. Some good amethysts are found of a deep purple 

 color, also smoky quartz, in crystals six to eight inches long, and 

 three to four iuches in diameter encrusted with well crystallized 

 amethysts of good color; also a peculiar feldspar in crystals six to 

 eight iuches long and four to six iuches across, having the appear- 

 ance on the surface of having been eroded. 



At Cartertown, farm of Peter Green, near Chester, is the old 

 Chester molybdenite locality on Chester Creek above Upland. A 

 few crystals of this mineral were found, with a considerable quantity 

 of the massive mineral, disseminated in quartz, but at present it is 

 scarce. , Molybdite occurs with it (Rand). In the same vicinity 

 was sillimanite. A crystal of beryl, of a pale green color, terminated, 

 four inches long, one and a quarter inches thick, was found here in 

 a boulder of granular quartz, and is now in my possession. On this 

 property, on the creek shore, a mine was opened some years ago for 

 copper, but very little sulphide of copper was found, and the mine 

 was abandoned as it required constant pumping. 



At Bridgewater, on Chester Creek near Upland, in one of the 

 quarries of John Mullen, in a pocket in the schists, several fine large 

 crystals of sphene occurred, of a yellow and also of a light green 



