Mineralogy, Geology, &e. 39 
is therefore desirable that the local existence of afnineral so 
essential to the chemist, the bleacher, and the potter, should 
be generally known. ‘The specimens accompanying this 
are— 
No. 1. Compact indurated manganese. Its colour is blue 
or purple blaek—very heavy, fracture splintry—fine grained 
and dull. It was analyzed by Woodhouse, (Coxes Med. and 
Phil. Register of April 1805, p. 451,) but he was misinform- 
ed as to its locality. It is found in detached masses, from 
the size of a walnut to that of a man’s head, on the head 
waters of Bear creek, Lehigh and Tobyhannah, on the 
Broad Mountain. 
4 rown frothy perenne: This is comparatively 
little cific gravity, of a spongy UOT Tt and porous 
texture ; itis map eas as tare the be of water rhowrdes. 
from t the Broad Mountain. z 
No. 3. Grey oxid of manganese, with solulae éabitideg ike 
surfaces of which are covered with minute globules of a 
brilliant lustre, found imbedded in black earthy manganese of 
a greasy feeling. From the Tobyhanna, near the turnpike, 
on the broad mountain, it is sometimes found investing peb- 
bles and cementing them in large masses. 
ery respectfully, 
~ Your obedielt Sat’s, % é 
“ZACH. cisT. 
Wilkesbarre, Pa. May 10th, 1821. 
5. New locality of Beryl. 
Vgiippilts; Chester county, ened ath. 
TO PROFESSOR S(LLIMAN. 
Dear Sir, 
{ will briefly fetiadaly you of a focsliny of beryl which 1 dis- 
covered eighteen months since, and proba bly the most ex- 
tensive that has been made public in this country. It is 
found seven miles westof Westchester, New Linn township, 
in what is called the Barrens, a serpentine ridge, extending 
nearly east and west, with some ren delta through a. 
