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 Pictou mountains are 

 altogether bounded on the west by Carboniferous rocks of moun" 

 tains. It at the same 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 quartzite slates, much metamorphosed. They 

 are fossfliferous. 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- 

 red 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- 

 glomerates and igneous rocks of the same branch of Barney's 

 River. We are thus led to follow a northern course, i. e., down 

 the river. We find them proceeding in this direction, crossing 

 the river atMcPhee's, and apparently terminating 8^ milesfrom 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 quartzite 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 crys- 

 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 consid- 

 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 Cameron's mountain of lower carboniferous age, re- 

 ferred to above, we found the southern continuation of our Silu- 

 rian (A) strata outcropping extensively ; after a time it ceases to 

 appear. 



