320 
[Assembly 
stance, and have gathered from others those facts which are essential to 
the completion of our information concerning them. 
We may sum up, briefly, our present knowledge of the ores of iron, 
from which we shall perceive more clearly the value and amount of 
this mineral in the northern section. 
1st. The Clintonville Mineral District. — In this, I have described 
12 veins, 10 of which supply ore to forges for the manufacture of bar 
iron ; and it is well known that the iron is of the best quality. 
2d. The Moriah Mineral District, — in which we may enumerate, 
also, 10 or 12 veins ; as a whole, they are wider and are capable of 
furnishing more ore than those of Clintonville ; some of them are equal 
in quality to the best, others are inferior and produced a brittle iron. 
3(i. The Newcomb Mineral District. — The magnificent veins of this 
district have been fully described. It will be seen on inspection that 
the whole width of 3 veins amount to, at least, 1,484 feet. 
Ath. The Schroon Mineral District. — This has been explored to a 
less extent than the preceding. There is no doubt but it will prove 
productive in iron ores, and the facilities for reducing remarkably good. 
Thus, the falls on the Schroon river at or near Mr. I. Griffins, in Ches- 
ter, present very superior advantages for the location of a forge or a 
furnace. Schroon lake and river are beatable above and below the 
falls. The state of the river below the falls gives access to the Brant 
Lake district, a distance of 6 or 7 miles. 
5th. — Another mineral district exists in Duane, in Franklin county, 
but not yet examined. 
6th. — The mineral districts of St. Lawrence, in the southeastern 
part of the county, to which the Chamont ore and the vein in township 
No. 10 belongs ; and another in the adjacent wilderness, whose locaj 
lity is known only to a few. 
7th. — The region of the specular ore constitutes another mineral dis- 
trict of great importance. The amount of ore belonging to this species 
cannot be estimated so accurately at present as the others, but may be 
set down as inexhaustible in the present generation. 
It is possible there is another mineral district a few miles west of 
Plattsburgh. The only fact, however, known to me, is the occurrence 
