148 Mineralogy and Geology of apart of Nova Scotia. 
We shall now advert to the porwr of Cumberland, and 
describe the quarries of — tones and the coal district of 
this region. The san re wide it emerges from beneath 
the trap at Cape D°Or, aa where it comes in contact with 
it at Cape Chignecto, exhibits the red color noticed at other 
places in the vicinity of this rock, is more compact, and desti- 
tute of organic remains. Leaving its Plutonic neighbor fur- 
ther up Cumberland Bay, it assumes a grey cee It alter- 
nates with, and passes into a coarse conglome 
ple River and the South Joggin it is quarried for grindstones 
and as a building material. The sandstone passes into the 
province of New aS and Sewn the extensive grind- 
stone quarries of Meringuin and Grindstone Island; but 
eon Bhp are heyond our Setitiy and we shall content our- 
with a of the quarries at the South Jog- 
quently meet with hard rounded no odules which they call 
‘bulls eyes,” and which always condemn the stones as use- 
less. They differ from the surrounding matrix only in poet 
more compact and having less of the Be balls basis, and 
breaking with a conchoidal fracture. The bulls eyes differ 
in size from one to ten inches in diameter. 
clude a smaller spheroid as a nucleus within the larger. 
’ es Near the mouth of a River, Sepenones are also eer 
ae es of mica and ena 
of felspar interspersed through the mass. The grains are 
usually Brigutdy and not often exceeding the size of a mus- 
_ tardse hey are united by an argillaceous cement, which 
' mio proportion to the whole. This rock contains 
remains of culmiferous plants, which lie 
uch compressed. They do 
— are m 
