THE GEOLOGY OF BELLEVILLE. Al 
Def. 8. In passing from f(p) to ¢, no change is made on A, Aj, 
_&e., because the surds entering into these expressions are the same 
in f(p) asin ¢. But since F { fi(p)} is equal to zero, the co- 
efficients A, A;, &c., must (Cor. 1, Def. 9) vanish separately. There- 
fore F (¢, ) = 0; and ¢; is a root of the equation, F (7) = 0. 
(To be continued.) 
ON THE GEOLOGY OF BELLEVILLE AND THE SUR- 
ROUNDING DISTRICT. 
BY E. J. CHAPMAN, 
PROFESSOR OF MINERALOGY AND GHOLOGY IN UNIVERSITY COLLEGE, TORONTO. 
Read before the Canadian Institute, December 17th, 1859. 
For the information of distant readers, it may be observed that the 
town of Belleville, in Canada West, is situated at the mouth of the 
River Moira near the western or closed extremity of the Bay of Quinté. 
The Trent, a broad and important river, enters this bay at the upper 
end, about ten miles west of the Moira, or rather constitutes by its ex- 
extension, the bay itself. The Salmon River or Shannon on the other 
haud flows into the same waters some eight or nine miles to the east of 
Belleville. The observations contained in the present paper apply 
almost exclusively to the tract of country thus bounded respectively on 
the east and west by the Salmon River and the Trent ; and extending 
from a short distance along the shore of Prince Edward’s County 
(south of the Bay of Quinté,) to some ten or twelve miles inland or to 
the north of the Bay. A few remarks, however, furnished by a hasty 
visit to the back township of Elzevir, are also incorporated in this 
paper—leaving the geological details of the iron district of Belmont, 
Madoc, &c., for a future communication. 
- Throughout this tract of country (as indeed almost everywhere 
within the Province,) the eye is at once struck by evidences of ancient 
denuding forces of an action both prior and subsequent to the deposi- 
tion of the Drift ; and, as a corollary to this action, of the much lower 
level of the land, relative to the water, at a comparatively recent period 
