GEOLOGY OF ANTIGONISH COUNTY—HONEYMAN. 309 
4. Cambrian ?@—“ Middle Arisaig.” 
5. Archeean,—‘ Lower Arisaig,” “Typical.” 
6. Igneous Rocks.— 
Carbeniferous. 
Pre-Carboniferous. 
I shall, by means of sections and offsets, indicate the several 
formations and their relative positions. At the same time, I will 
take occasion to make illustrative notes. 
Section I., on the line of railway from Pictou County line to 
Antigonish harbeur.—The range of inountains on this line com+ 
mences at a distance of about two miles N. W. of the town of 
Antigonish, and extends westwards to Barney’s River Settle- 
ment in the County of Pictou. At this extremity the railway 
has exposed an interesting junction of carboniferous conglo- 
merate, and igneous rocks. Equivalents of A and B members 
(Hudson River, Lower Silurian) of the “Fossiliferous Arisaig 
Series,” and the metamorphic Cambrian rocks of the mountains. 
In addition to this it has given easy access to the mountains, in 
parts where they bave been cleared of forest, and can be exam- 
ined to greater advantage than in Antigonish County. This is 
the case nearly up to the County line. (Vide “Notes on a New 
Geological Progress Map of Pictou County.”—Transactions of the 
Nova Scotian Institute of Natural Science, 1880, Vol. V.) 
Before reaching the County line; the railway has entered an 
interesting band of rocks, corresponding with A. Arisaig, as 
above, both in lithology and paleontology. The strata are hard 
metamorphic slates. The fossils are scattered through the rock, 
and are all in the state of casts, with the exception of the 
Lingule, which survive, while the others have only left their 
impressions, external or internal. Other fossils are Petraiu, 
Cornulites and Orthoceras; the Petraia are persistent, being 
found everywhere, and in pretty much the same condition, 
wherever corresponding strata are found. Occasionally I have 
found the corals silicitied. In twolocalities only has the coral sur- 
vived in A, in a state of distortion. I would further remark that 
these strata succeed the metamorphic Cambrian (?) formation of 
the mountains, as their relatives do at the western end, without any 
