196 NOVA SCOTIAN GEOLOGY.—HONEYMAN. 
tain is there connected with the Carboniferous of Merigomish, on 
the north rather than on the west. It then appears that the 
metamorphic rocks of the Antigonish and Pictoa mountains are 
altogether bounded on the west by Carboniferous rocks of moun- 
tains. It atthesame time appears that the Middle Silurian (A) 
strata, on the left side of the road, are completely disconnected 
with the similar strata (A) toward the county line. These are 
two note-worthy considerations. 
I shall now direct attention to the disconnected Silurian strata. 
They are brownish quartzose slates. much metamorphosed. They 
are fossiliferous. The fossils are the usual ones of A of the “ Up- 
per Arisaig series.” Petraia, Athyris, Cyclonema. They are all 
casts—external and internal. On the east branch of Barney’s 
River, where the railway enters the Marshy Hope, I have refer- 
ed to similar strata partly covered by a dump. These lie to the 
north of the preceding, and are also cut off from any connec~ 
tion with Eastern Silurian strata by the carboniferous con- 
elomerates and igneous rocks of the same branch of Barney’s 
River. We are thus led to follow a northern course, 1. e., down 
the river. We find them proceeding in this direction, crossing 
the river at McPhee’s, and apparently terminating 3; miles from the 
entrance to the Marshy Hope. I collected fossils in part of these at 
the road before reaching McPhee’s. Two of the specimens lie before 
me. I shall describe them. The one is a quartzose rock, coloured 
brown with iron oxide. It has a sharp cast of the exterior of 
a good sized Cyclonema. One side of the- specimen has erys- 
tals of quartz. ‘The second specimen is of the same character, 
being from the same mass of rock. It is larger, having a vein of 
quartz with beautiful quartz crystals. On a corner is exposed a 
large Cyclonema, showing the internal cast entire, also a consider- 
able part of the surrounding external cast. The shell space is 
entirely vacant. The last specimen is a beautiful and convincing 
illustration of rock formation. 
Examining the high ground south of the Marshy hope road, 
and west of Caieron’s mountain of lower carboniferous age, re- 
ferred to above, we found the southern continuation of our Silur- 
ian (A) strata outcropping extensively ; after a time it ceases to 
appear. 
