88 C. T. Jackson on Emery in Chester, Mass. 
county iron furnaces, without a suspicion, notwithstanding 18 
refractory nature, that the ore was emery, with only a small ad 
mixture of iron ore. 
The principal bed of emery is seen at the immediate base 
the South Mountain, where it is four feet wide, and cuts through 
the mountain near its summit, at an angle of 70° inclination 
Ss. W.., an 
The alternations of rock in two sections are as follows, begit” 
chlorite slate; g, 4 ft. Hmery; h, chloritoid and margarite 
. a, Mica slate; 6, 6 ft. magnetic iron ore; le 
d, 64 ft. magnetic iron ore; e, chlorite slate; f, hornblende 10° 
erystallized; g, 7 ft. Hmery, chloritoid and margarite; /, mi 
netic iron ore; 7, hornblende rock. yo 
The elevation of the upper outcrop of this bed above the 
mediate base of the mountain is 750 feet. There are < 
ae ae ¢ Oe, ee , ery three feet in 
