166 Remarks on the Lead Veins of Massachusetts. 
coloured coarse sandy schist, becoming red in the fire. 
Respectfully, your obedient servant, 
ZAC. CIST. 
Professor SinnmM an, 
New Haven, Connecticut. 
2. Remarks on the lead veins of Massachusetts, &c. in a letter 
addressed to the Editor. ° 
“we Yare Couxsce, July 15, 1824. 
Proressorn SinuiMAn, . 
; are seen again—precisely where we should expect to 
find them~-in the granite and quartz of Leverett. Though 
1 have no doubt that this is a correct statement of the case, 
yet from some discoveries made in Williamsburgh by a 
Mr. Nash, it would seem that the lead connected with the 
quartz, and associated with pyritous copper, though the latter 
is here by no means so abundant as at the locality on the 
farm of Mr Field, in Leverett. For a while, very sanguine 
hopes were entertained with regard to the Williamsburgh 
vein, and it is probable that future research will prove it to be a 
valuable one :—owing, however, to the hardness of the rock, 
few attempts have have yet been made to penetrate far into 
its interior. Is this one of the veins of Mr. Hitchcock and 
Professor Eaton? After proceeding in a northerly direction 
from Southampton, would it, at the northeast corner of Wil- 
lhamsburgh forma rightangle, and go directly east, to Lever- 
ett? Or, are this and the Whately vein not identified? A 
more critical examination of the towns in Hampshire and 
. 
