No. 50.J 
299 
The site of the village of Mclntyre, is not far from what will be one 
of the great lines of communication through the State. Situated as it 
is on the table land of the north, it can have a communication east to 
Lake Champlain ; or south, through Long and Racket lakes ; or north- 
west, down the Racket river to the St. Lawrence, and thence to Canada. 
SECTION XXX. 
Theory of the origin of the Veins of the Magnetic Oxide. 
The complete establishment of any doctrine in geology, as in all other 
branches of science, requires an extensive series of observations. Am- 
ple time for observation and reflection must be given to the subject be- 
fore a theory can be established, or even advanced with propriety. 
Hutton, after an extended series of observations led the way to the es- 
tablishment of the doctrine of the igneous origin of granite and basalt, 
and consequently to the overthrow of the theory of Werner. Since the 
day of Hutton, his doctrine by farther elucidation, is confirmed, and it 
is now the received doctrine of the day. Since then, the theories in re- 
lation to the formation of other rocks have likewise undergone similar 
changes, so that igneous rocks are spoken of with as much confidence 
as those formed by deposition from water. 
Applying the same rules of reasoning as have been employed in es- 
tablishing the igneous origin of granite, and we shall probably arrive at 
the same result, as it regards the origin of the magnetic oxide. A mo- 
ment's consideration only, is required to reject the theory, that those 
veins are of aqueous origin. The idea that they may have been formed 
by electro-magnetic agency, is quite difficult to support, when such im- 
mense quantities of matter are concerned. We are left, then, to adopt 
the igneous theory, almost by necessity. We may now ask, what phe- 
nomena do those veins present, which go to show that the materials 
were ever in a state of fusion, and were projected upwards into fissures 
while in this state. 
In the first place, there is presumptive evidence of this, arising from 
the fact that the magnetic oxide* is always associated with igneous 
rocks, and in fact embraced in them. 
* There is no improbability of their being contemporaneous with the rock, and to 
have been acted upon by the same agents. 
