a 
found here. They appear to have been trimmed into that form. 
It is quite possible that these slight excavations were made 
by Indians, perhaps from curiosity. About two miles from 
this spot is a considerable outcrop of potstone that has been 
quite extensively worked by Indians, for the manufacture of 
s 
ouse. Here two pits were dug, one on a hill of small alti- 
tude, and the other about one hundred yards distant, on a 
stream No.2. Neither exceeds eighty feet in ee From 
Occasionally small particles o 
found. More commonly, 
green mica occurs that looks as if it were ¢ 
The muscovite is sometimes bent, showin 
vein, 
Feldspar.—The feldspar presents some points worthy of note. 
Much the larger part of the feldspar found in both pits is 
i in pit No. when fresh, 
light-greenish in color. The feldspar of pit No. 2 is mainly 
yellowish-white. The orthoclase in both of these pits 1s preee 
always found in crystalline masses. At an opening ma oe 
some two miles to the northeast of these pit mate 
called pit No. 8, a nest of very large orthoclase eryst 
