[Assembly 
But of the specular ore, sometimes assuming the compact form, locah- 
ties abound in the towns of Rossie, Gouverneur, Edwards, Fowler, 
Harmon and De Kalb. Indeed, it forms one of the great staples of 
the county. 
The iron ore last mentioned is almost always associated with quartz 
crystals in which the prisms are either very short or are entirely want- 
ing. Sometimes these crystals are of considerable size and of great 
beauty. At the Parish ore bed there are also found arragonite, calca- 
reous spar in dodecahedral crystals, sulphate of barytes, carbonate of 
iron or ankerite and the jaspery iron ore. 
Finally bog iron ore is also found in various parts of St. Lawrence, 
and its quality has been abundantly tested by long use in the furnace. 
Leaving now the metallic minerals we notice the abundant deposits 
of carbonate of lime in the form of marble of the common white and 
clouded, the dolomitic and the serpentine varieties. These are all found 
in various parts of the county and must hereafter be sources of wealth. 
Tufa and marl are also occasionally met with ; the latter, will undoubt- 
edly be of great use as a fertilizer. An extensive and valuable deposit 
of hydraulic limestone exists on the St. Lawrence. 
It may also be added that the peculiar form of soapstone which I 
have noticed under the head of Jefferson county, abounds here and 
often passes by the name of plaster. It is not a little surprising that 
in the town of Rossie this article had actually been prepared in large 
quantities and sold at a high price, and that certificates have been pub- 
lished setting forth its value as a manure. It is barely possible that 
such a compound may prove beneficial on some of the sandy soils of 
St. Lawrence, but it is much more probable that it will generally be 
injurious. Be this however as it may, it is neither similar to plaster of 
Paris nor in any respect like it in its action upon soils. I make this 
statement entirely from a sense of duty and as a caution to those who 
might be misled by the inaccurate or interested statements which have 
been made in regard to the article in question. 
The following list will, I think, include nearly all the remaining mi- 
nerals of this county: 
Sulphuretted hydrogen gas — Given cut by a spring at Massena which 
is much resorted to. 
Graphite — Several localities — It will probably be found abundant. 
