198 
[Assembly 
In the first place, I have to state that, we have the same evidence 
that what I have denominated the primitive limestones had an igneous 
origin, as there is that granite had this origin. The following series of 
diagrams, illustrating the relative position of this among the primary 
rocks, I present in support of my position. 
1 
Fig. 1, represents a vein of limestone in granite, in Fowler, near the 
village of Halesborough. The limestone traverses a bed of granite in 
an easterly and westerly direction. It is about 20 feet wide, and crosses 
the Oswegatchie and spreads out on each side into wide beds, and con- 
nected only by this narrow neck or vein. At the place where the vein 
crosses the river it is much broken and deeply abraded; so much so that 
on the east side portions of the bed of granite beneath are exposed. If 
this instance stood alone, the position of the limestone might have been 
accounted for or explained on the supposition that the limestone was 
deposited from water above the granite, when it would of course fill all 
the cracks or inequalities in or on the surface of the granite, a, lime- 
stone, b granite* 
2 
Fig. 2, is a view of the same rocks, taken a few rods above the 
preceding, a, limestone, granite. In this example the limestone is 
beneath the granite, into which it projects in the form of a triangular 
