454 
ticular study, Orbicule and other organic remains; and the same 
-gentleman informed Mr. Henwood, that beneath this limestone there 
are strata of sandstone enclosing fucoides and leaves of plants. 
At Rochester the Genessee traverses a channel 500 feet wide and 
80 feet deep, and falls in the middle of the town over a ledge of that . 
depth, composed of beds of quartzose limestone and calcareous 
sandstone containing shells, and abounding in hollows lined with sta- 
lagmitic incrustations. 
2. ‘‘Notes to accompany a series of specimens from Chaleur Bay — 
and the river Ristigouche in New Brunswick,” by Mr. Henwood. 
Granite constitutes the lowest rock in the neighbourhood of Ba- 
thurst (47°40'N. lat., 65° 42’ W. long.), appearing about a mile from 
the town on the banks of the Nepisiguit, and extending up its course 
for three miles; it is often traversed by granite veins of a finer and 
more quartzose nature, particularly at the Pabineau falls. For the 
whole of the above distance it is surmounted by the sandstones and 
conglomerates of the coal-measures, the bedding of which conforms 
almost perfectly to the surface of the granite. Near Long Meadow, a 
greenish slate-rock, very much contorted in the cleavage | planes, is m 
contact with the granite and overlaid by a coarse quartzose conglo- 
merate with apparently a ferruginous basis, and belonging to the 
coal-measures. The greenish slate extends to the grand falls, con- 
taining numerous quartz veins, and occasionally, as at the chain of 
rocks, irregular masses of greenstone. 
Granite also runs for some miles up the courses of the Little and 
Middle rivers, and near Molloys, on the latter, it is overlaid by a 
thick-bedded greenish slate, which is traversed near the junction of 
the two rocks by numerous granite veins. In the bed of the Little 
river, about eight miles from Bathurst, a fine glossy clay-slate ap- 
pears. Afine deep blue clay-slate forms both banks of the Tattigouche 
from the sea to Clarke’s Camp, a distance of twenty-two miles, and is 
overlaid near Blackstock’s Mills by the quartzose conglomerate of 
the coal-measures ; while-at the Tattigouche falls a reddish brown 
rock contains numerous small vermicular and nodular masses of 
oxide of manganese. At this spot Mr. Henwood found a portion of 
an encrinite, the only organic body seen by him. 
The coarse sandstones and quartzose conglomerates of the coal- 
measures extend, Mr. Henwood believes, over the greater portion of 
New Brunswick, being continuous, so far as he could discover, from 
Fredericton (45° 55!’ N. lat., 66° 45’ W. long.) on the St. John’s 
river, to Boice’s town, Newcastle and Chatham (about 47° N. lat., 
65° 30' W. long.), on the Miramichi river, and thence to Bathurst, to 
the northward of which they apparently terminate. In the last-men- 
tioned locality so great abundance-of vegetable remains have been 
found, charged with vitreous and the blue and green carbonates of 
copper, that mining operations have been conducted for the purpose 
of procuring the metallic minerals; but the quantities obtained have 
not repaid the expense, though the ores have been found over a con- 
siderable tract. The bed containing the copper lies between two strata 
