Miscellaneous Notices in Mineralogy, Geology, §c. 241 
ft is, as we are informed, so abundant in some s, that 
the people use it in dying, without resorting to any other 
supply. We are not aware that f alum has 
been observed in other countries. We have not room to 
discuss the origin of the alum in these cases; but we will 
add, that in some decomposed mica slates, we have seen 
sulphur in a state of freedom, mixed with the proper con- 
stituents of the rock, and burning abundantly — the char- 
acteristic smell when thrown on the fire. Indeed, 
is it not peavorts that alum will be ~owenors ‘rom more 
rocks and minerals than have yet been thought of for this 
purpose. The very remarkable example of Breccia from 
Mount D’Or in Auvergne acto eee ict volume 
two im cern As Sir et ae es 
Bev 
= 21, Remarkable a of Gara, = 
Garnet is a mineral of such frequent occurrence in , primi- 
tive countries, that it would be useless to attempt to point out 
all its localities. In Connecticut it is most abundantly dif- 
especially mer. arab sieves aeacone in the 
tali b ee apt al 
tion—the pl b, the angles, and edg 
fe a ae a dodanie by twenty-four _ 
trapezoidal faces; not unfrequently they occur in =~ 
their general size is from that of grape shot to that 
ket and pistol hles ey are imbedded in a mica alae, 
possessed of so little cohesion, that both on the outside and 
anit Montlsemen re ine heme it | 
