136 Southampton Level. 
Ant. VI. Account of the Strata perforated by, and of the 
Minerals found in, the great adit to the Southampton Lead 
Mine. Communicated to the Editor by Mr. Amos Karey, 
Lecturer on Geology, Botany, §c. 
To Professor Silliman. 
Arrer a laborious geological excursion along Maclure’s 
Springfield section, for about one hundred. miles, I visited 
Dr. D. Hunt, at Northampton. He observed that you had 
expressed an opinion, that an attentive examination of all the 
strata constituting the walls of the artificial avenue or drift at 
the Southampton mines, would bring facts to knowledge, 
which might, in some degree, subserve the cause of geological 
science. I am now at the mouth of the drift, having just com 
pleted the labour which you had marked out. 
I employed two miners to commence with me, at the tel 
mination of the drift, which is now extended 800 feet into the 
hill. We broke off large specimens, at very short intervals 
throughout the whole extent of the drift. We arrived at its 
mouth with almost a boat load of specimens. I kept a memo 
randum of every thing which occurred, while under ground} 
and [have now arranged the specimens, before the mouth of 
the drift, in the same order in which they were situated 
the earth. 
Fatigued as I am, I will make my remarks here, in the 
field, lest something should hereafter escape me, which ® 
now fresh in my recollection. Beginning with the greatest 
distance to which the miners have penetrated, I will set dow? 
my remarks, in fact, in reversed order. eis 
800 feet. The rock is fine-grained gray granite, traversed 
by veins, lined with quartz crystals, and mostly filled with 
calcareous spar, often beautifully crystallized. In the same 
veins blue and purple fluate of lime and copper pyrites fre- 
quently occur, 
