in gold product or in strength.
The formation of the country is on too grand a scale, geologically, to
admit of a doubt on this point, so vital to mining success." Mr.
Campbell, whose masterly survey and analysis of the whole gold-region
forms, with the colored section accompanying it, the basis for a general
and thorough understanding of the whole subject, adds (Report, p. 5)
that "the yield per ton of such quartz when crushed cannot fail to prove
highly satisfactory." And Mr. Chace, in the Preface to his Report on the
Oldham District, (p. 6,) remarks, that, "if, as there are reasons for
believing, the gold-bearing quartz of Nova Scotia is of sedimentary
origin, in that case I see no reason why depth should cause any decline
in the richness of the ore. As yet, none of the shafts have been carried
down sufficiently far to test this question practically,"--he must, we
think, mean to its fullest extent, since he adds immediately after,
that, "as far as they have gone, the ore is very generally believed to
have improved with increase of depth."

Such, then, is a brief and imperfect description of the general
character of one of the representative veins or "leads" of the
gold-fields of Nova Scotia. Of the extent and number of similar deposits
it is scarcely possible at present to give any definite idea. The line
along which Mr. Campbell's section is made out extends from the
sea-shore at the south-east entrance of Halifax Harbor to the Renfrew
Gold-Field, a distance a little over thirty miles to the northeast,
intersecting in that distance no less than six great anticlinal folds.
The points at which the east and west anticlinal lines are intersected
by north and south lines of upheaval form the localities in which the
quartzite group of gold-bearing rocks are brought to the surface, and it
is here that their outcroppings form the surface of the country. The
official "Gazette" for January, 1864, enumerates nine of these districts
as already under a course of active exploration, namely, Stormont, Wine
Harbor, Sherbrooke, Tangier, Montague, Waverley, Oldham, Renfrew, and
Ovens. When we add, in the words of Mr. Silliman's second conclusion to
his Report on the Atlantic Gold-Field at Tangier, "that the gold-bearing
veins already explored on this estate alone are in number not less than
thirty, and that there is every reason to expect more discoveries of
importance, as the results of future explorations, already foreshadowed
by