74 
[Assembly 
I may here also state that Lewis county contains extensive beds of 
serpentine. The specimens which we procured from the vicinity of the 
Natural Bridge, exhibit beautiful shades of colour and take a fine po- 
lish. I think it probable that large slabs might be obtained free from 
checks or flaws. 
The following were found in this county by Dr. Horton and myself, 
during the last summer, viz : 
Calcareous spar, of a sky blue colour — ^Found, as were all the suc- 
ceeding, in the vicinity of the natural bridge. 
Satin spar — In thin veins. 
Tabular spar, associated with green coccolite — In the same place and 
abundant. This is probably one of the localities from whence have 
been derived those bowlders of the same minerals which occur at Boon- 
ville, in Oneida county. (See appendix.) 
Phosphate of lime — In small crystals. 
Quartz — In large opaque crystals and in druses. 
Feldspar — Crystallized and massive. 
Scapolite — In crystals of a grey colour and exhibiting the appearance 
of having been fused. 
Pyroxene — Crystallized and black. 
Sphene — Associated with the pyroxene and scapolite. The crystals 
are sometimes large and fine, but perfect specimens are with difficulty 
obtained. 
Mica — In small crystals, abundant. 
Iron p3rrites — Abundant. 
LIVINGSTON COUNTY. 
The most important mineral in this county is gypsum, which has 
been found in various places and is probably in sufficient abundance for 
all the uses to which it is commonly applied. 
Salt water has been found near York, a fact which is chiefly inte- 
resting in a geographical notice of our brine springs, as neither the 
strength of the water nor its quantity give it any importance in an eco- 
nomical point of view. 
The sulphur springs of Avon have long been celebrated and their 
value has been tested by thousands of persons. They are undoubtedly 
