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[Assembly 
in a given section of country are soon to be exhausted, then there is 
no occasion or no propriety in making extra expenditures to facihtate 
the transportation of heavy articles. On the contrary, if these collec- 
tions of ore are inexhaustible, then they constitute a permanent source 
of wealth and income to the country, and v^hich may be increased by 
facilities for transportation, without danger of finally losing value from 
want of articles to transport. 
Baltic Ore. 
The Baltic vein is to be considered as a part of the Cook vein. It is 
distant from the latter one and a half miles, and from which it may be 
traced by surface ore. The vein has been exposed in two places ; the 
most southerly was mixed largely with iron pyrites, especially the por- 
tion adjacent to the eastern wall. It is not so highly charged as to pre- 
vent its use in the furnace ; but for bar iron it proves brittle. On ac- 
count of the injurious mixture of pyrites in the southerly opening, the 
vein was sought for twenty or twenty-five rods further north, when it 
was found to be well developed near the surface. This last opening 
was just made at the time of my examination, and the true character of 
the vein could not be determined. Still, there was a width of thirteen 
or fourteen feet of vein, mixed with rock composed of flint, hornblende 
and black mica. Thick solid masses of ore, free from pyrites, were 
found traversing the vein longitudinally, somewhat wedge-form in shape, 
with the thicker portion downward, indicating an increase of ore in that 
direction, and the disappearance of rock from the vein. It is proved by 
reduction, to make an iron similar to that made from the Cook ore ; 
ore, as has already been stated, as of the best quality. 
About fifteen rods farther west, is another vein of iron, with a gangue 
of pure white flint, which I examined, and which may be traced thirty 
or forty rods. The ore is black, and constitutes about one-third of the 
vein at the surface. By the encouragements which were given, this 
vein has also been opened, and presents favorable indications of being 
a valuable deposit of ore. The presence of white flint is always 
regarded as an important substance in the magnetic oxide, particularly 
as it becomes a valuable flux in the process of reduction. 
This vein varied from four to six feet in width at the surface ; and I 
am informed since my visit, that not only the quantity of ore increased 
in the vein, but also increased in width. 
