No. 161.] 
39 
The bed from which the Waddington Furnace is supplied is 
situated near the river La Grasse, about two and a half miles from 
the village of Columbia, and about seven miles from the village of 
Waddington. There ate three varieties of ore differing very little 
in their composition. One consists of large lumps, and is known 
by the name of pan ore; another, in small masses more or less round- 
ed, is called shot ore; and lastly, the ochrey ore is called loam ore. 
All these varieties have a reddish yellow colour when reduced to 
powder; and by calcination lose from 18 to 20.5 percent. After 
this operation they become black and are freely taken up by the 
magnet, although before they are subjected to heat they are not in 
the slightest degree influenced by it. 
Jlnalysis of Bog Iron Ore from the River La Grasse^ St. Lawrence 
County. 
Peroxide of iron, 71 .00 
Silica and alumina, 8.50 
Water, 20.50 
100.00 
Proportion of metallic iron, 49.23 per cent. 
The extent of this bed has never been fully ascertained; but Mr. 
Ogden is of opinion that it is sufficient to carry the furnace fifteen 
or twenty years. 
Another valuable bed of the same ore has been recently disco- 
vered near the boundary of the towns of Madrid and Louisville. 
^ And another one, said to be of great extent, is situated in the town 
of Brasher, on the Deer river. The variety called pan ore pre- 
dominates, and it is of an excellent quality. A furnace has re- 
cently been put in operation about a quarter of a mile from this 
bed. 
Such being the results of my inquiries and observations concern- 
ing the more important ores of iron, I will briefly notice some oth- 
er compounds of iron which occur in this State. The magnetic iron 
sand, which consists of minute crystals, or fragments of crystals, 
and is interesting in consequence of its sometimes containing tita- 
nium, occurs on the banks of the Hudson, at Cold Spring, and on 
the banks of many of ihe streams in the Highlands — at the head of 
Lake George — at Port-Henry, on Lake Champlain — on the shores 
of Lake Erie, and at Geneva; and probably various other locali- 
