96 
AMERICAN GEOLOGY. 
iron ores which lie in a line, passing very nearly through the 
range of Scott’s mountain towards Phillipsburg, opposite to 
Easton, on the southwest side of the Delaware. The belts of 
iron ore which pass from the southern Highlands of New York 
through New Jersey into Pennsylvania, might be described 
more particularly, and as running in at least three parallel 
belts. But it is my object at this time to speak generally of 
the relation of this ore or rock to the low ranges of mountain 
chains, which may be called outliers of the Appalachians, and 
which, taken as a whole, constitute one great belt of iron rock 
coextensive with the great mountain ranges of the Atlantic 
slope. 
The magnetic ores of Pennsylvania are confined to the south¬ 
eastern part of the state. They are quite limited in extent 
when compared with the great development in New York and 
New Jersey. The few veins which do occur, however, lie in 
the same ranges as those of the states just named. Thus in 
Burke county there are several parallel veins at mount Pleasant. 
At Durham, on the Delaware, is another district of this ore. 
In Virginia, the ores of iron are abundant in the eastern sec¬ 
tion of the state, extending from a little south of Fredericks¬ 
burg to Carolina; but it is an interesting fact, that most of the 
beds and veins have been changed into the hydrous brown 
oxides. They occupy the same relative position as the mag¬ 
netic ores. A. southwest range, however, of magnetic ores 
passes through Buckingham, Patrick, and Franklin counties, 
following closely the Blue ridge in its southwestern pro¬ 
longation. 
In North Carolina the iron ores, skirting the subordinate 
ranges of the Blue ridge, are equally abundant; but they follow 
two or three lines, one of which passes through Granville, 
Orange, Guilford, and Chatham counties; another west of the 
Blue ridge, through Ash, Yancey, and Buncombe and Cherokee 
into Georgia. The condition of the ores, however, is much 
the same as in Virginia, the magnetic having been changed to 
the hydrous brown oxide. From the foregoing it appears that 
