No iGi.] at 
Jimenia Ore ^e^^.— Passing through Dover Plains, in the vicinity 
of which arc inexhaustible quarries of white and colored marbles 
of excellent quality, we find another deposite of hematite in the 
north-western part of the town of Amcnia. This is truly a mag- 
nificent locality, whether we consider the quality or the enormous 
quantity of the ore. Supplies are here obtained for the Amenia 
iron Company, and for several furnaces in the State of Connecti- 
cut. The bed has been opened at various places for the distance 
of 100 yards, and the ore presents all the varieties observed at the 
celebrated Salisbury deposite. It often occurs in the form of star 
lactites of various sizes, and possessing uncommon beauty. The 
same high polish, or blackish sooty matter, is observed on the 
surface of the nodules, and they not unfrequently have a light 
brown color, and a structure so distinctly fibrous as to bear a 
considerable resemblance to w^ood. A fragment of a stalactite 
from this locality, was found to have a specific gravity of 3.828; 
and to lose upon calcination 13.5 per cent of its wciglit. The 
composition of this specimen will probably be a fair average of 
that of the pure hematitic variety from the various localities in 
this county. 
Analysis of Brown Hematite from the Amenia Ore Bed, 
Peroxide of iron, 82.90 
Silica and alumina, 3. GO 
Water, 13.50 
Oxide of manganese, trace 
100.00 
Proportion of metallic iron, 57.50 per cent. 
The iron region which has just been described is undoubtediv a 
part of the great series of deposites which has been traced in a 
nearly northern direction through the States of Connecticut, Massa- 
chusetts and Vermont. Thus this ore is known to occur at Kent 
and Salisbury in Connecticut, at Lenox and Richmond in Massa- 
chusetts, and at Bennington, Pittsford and Monklon in Vermont. 
At almost all these localities it is accompanied by an ore of zinc, 
although in proportions too small to be detected by ordinary analy- 
sis; and in Vermont it is associated with ihe oxide of manganese. 
At the Ancram furnace in Columbia county, where the Salisbury 
ore is employed, layers of oxide of zinc are formed in the chimnev, 
and the same thing is also observed at other furnaces where this 
