38 
[Assembly 
ore is used. A specimen of this substance, which I obtained at 
Ancram, having a yellowish colour, gave upon analysis the followr 
ing results in 100 parts, viz. 
Carbon, , 1 .00 
Oxide of iron, 2 - 90 
Oxide of zinc, .... 96 . 10 
100,00 
On the eastern borders of the State, near Ancram, the hematitic 
ore is also found; and at a place called Boston Corners, between the 
State of New-York and Connecticut, is an extensive deposite of it. 
In proceeding tow^ards the north we meet with many interesting 
and important localities of limonite in some one or other of its 
varieties. Thus in various parts of Albany county, bog jron ore is 
very abundant. It is here, as elsewhere, usually found in swampy 
or marshy ground, and affords a fine illustration of those chemical 
operations which are continually going on in nature, as the ore is 
evidently deposited from water, which, by its excess of carbonic 
acid, holds the oxide of iron in solution. 
We are informed by Dr. Steel that the bog iron is abundant on 
the plains between Saratoga and Ballston Springs. It occurs along 
the bottoms and banks of small streams, or at the bottom of the 
hollows that are sometimes filled with water. 
In Washington county, beds of brown hematite of considerable 
value have already been opened. At the head of South Bay, in 
the town of Fort-Ann, is an abundant deposite, and the same variety 
is also found in a northwestern direction from the former, about a 
mile and a half from the village of Whitehall. The ore is quite 
similar to that from the Salisbury and Amenia beds, and is in good 
repute among manufacturers. 
In the northern part of the State, above Crown Point, this kind of 
ore is comparatively of rare occurrence. Franklin, Jefferson and 
St. Lawrence counties, however, contain some important localities 
of bog ore, which are usually on the banks of streams, and furnish 
iron of an excellent quality. The latter county is particularly rich 
in this mineral; especially the towns of Madrid and Brasher. — 
For the following notice of some of the localities in that region 
I am indebted to the kindness of William Ogden, Esq. of Wad- 
dington. 
