to N. 55 E.,uik1 where visible Tii^on the beach it is broken by 

 a succession of faults. One of these faults is caused by 

 clvan No. 2, — which is from G to 8 feet in width, and 

 consists of a very intimate mixture of Quartz, rels])ar, and 

 Mica — weathering j^erfectly smooth, and traversed by three 

 strings of Cherty Quartz, the direction is N. 30 W. Elvan 

 No. 1 is about three feet in width at the one end, gradually 

 diminishing, and breaking up with a number of strings at the 

 other. 



The Greenstone is of a coarsely crystalline structure similar 

 to that so widely distributed over the Colony, — I have but 

 little doubt, therefore, that it is identical in point of age, as 

 well as in general characters, with the Greenstone forming the 

 elevated tiers at Fingal and Mount Nicholas, — the older 

 Palaeozoic rocks likewise bear internal testimony, from their 

 structure and composition, as well as from their strike, 

 cleavage, &c., as to their age, — the only cjuestion remaining, 

 and in this case the important question is as to the age of the 

 associated Sandstone, — which I shall, therefore, consider in 

 more detail. These Sandstones occupy the shore for the 

 distance of some few hundred yards, and they are separated 

 from the older Palaeozoic formation and the Granite, by a 

 kind of fault running in the direction 10 N. of W., and S. of , 

 E. — they lie to the northward of the fault, and upon the 

 Tomahawk Point, a little beyond the oj^ening of the river, 

 they may be traced as far as Tomahawk Island, but only 

 along the beach, — they have but a slight inclination, and form 

 a sort of x^avement on the beach, they are friable and coarse, 

 buff colored, speckled with brown, j)i'esenting the variegated 

 appearance so characteristic of the sandstones forming so large 

 a portion of the coal measures af Fingal and Killymoon, — 

 some traces of vegetable impressions remain, and to a small 

 extent carbonized wood. In fact, in general aspect they so 

 closely resemble the coal measures of other parts of the colony, 

 that I think no person, after a careful comparison, would feel 

 inclined to doubt their identity. It is also a remarkable fact 

 that upon the beach adjoining, and upon the headland on the 

 west of Tomahawk Point, fragments of coal are constantly 

 thrown up, I myself discovered many, all within the span of a 

 few hundred yards, and satisfied myself that they could not 

 have resulted there from any accidental occurrence. 



Having said thus much upon the age of the Sandstone and 

 the Greenstone, I would call your attention to sketch No. 2, 

 which represents the relations of the two as actually exhibited 

 upon the coast, the overhanging masses of Greenstone and 

 underlying bed of Sandstone passing underneath the Green- 

 stone at an angle of a few degrees, altered at the point of 



