Mineralogy and Geology of a part of Nova Scotia. 149 
the — unless many occur in the mass, which seldom 
happens, as they are mostly scattered diffusely through the 
strata. The fossils which occur in this sandstone, stamp it as 
a secondary rock, although it is evidently older than the trap 
rocks recumbent on it along the margin of the Basin of Mines. 
A few miles south west from the grindstone quarries at the 
South Joggin, a bed of bituminous coal exists in the sand- 
stone, accompanied by shale. The bed is about five or six 
feet thick, and has been wrought to a small extent, but is now 
Seiaioad, and the shaft is filled with earth and rubbish. 
coal contains an abundance of pyrites, which injures its 
lity as an article of fuel. In the vicinity of this bed oc- 
cur several smaller beds, one of which is covered by a stra- 
tum of bluish compact limestone, in the upper surface of 
which Dr. Lincoln observed fragments of shells resembling 
those of the common muscle. (Mytilus edulis?) Many of the 
vegetable fossils so common in the rocks of the coal series 
in other countries are found in great abundance here, imbed- 
ded in the sandstone, which dips at an angle of thirty degrees 
from the horizon, and includes the coal. Specimens of the 
phytolithus verrucosus were found by Dr. Lincoln, which ex- 
actly resemble those repr rawings accompa- 
nying Mr. Steinhauer’s article on 1 these fossils in the Ameri- 
n Philosophical Transactions, New Vol. I. Pl. IV. 
fig. T. 2. and 4. spr, estan Pee oS fossil it 
ed in Parkinson’s Organic Remains, Vol. I. Pl. I . fig. : 
bling bamboos and rushes are likewise abundant. Some of 
the reeds are three or four inches i in diameter and as many 
cipal coal bed, Dr. Lincoln saw one segment of a trunk two 
feet long and twenty five inches in diameter, and : 
about one foot cine and eighteen or twenty inc’ Galante: 
ter. The external appearance of this petrifaction had led 
the grindstone evasion to believe it to feo been a hemlock 
tree (Pinus Canadensis.) They say that a few*years “se a 
large part of the trunk was sprees erect in the cliff, with 
some of its branches attached to it. 
