7+ NOVA SCOTIAN GEOLOGY—HONEYMAN. 
alone in the Pictou Coal Field that I succeeded in identifying A 
B’ and D of my Upper Arisaig series, (i. e, A Mayhill Sandstone, 
B’ Clinton, and D Upper Ludlow or Lower Helderberg), in Irish 
Mountain, McLellan’s Mountain, and Sutherland’s River, and in 
discovering characteristie fossils in them all. It was on this 
occasion that I identified the Mayhill Sandstone of Fraser’s 
Mountain, (McLellan’s Mountain range), and found Petraia 
afterwards in the same way that I identified Nictaux correspond- 
ing strata and found Petraia in them. 
I also identified the same formation at Sutherland’s River by 
the occurrence of Petrawia, the rocks being unlike and the rela- 
tions doubtful and found characteristic, Athyris and Orthis: 
of A in like abundance, and of the same genera and species (un- 
determined) as at Lochaber, Arisaig, and Marshy Hope. 
About the time that Sir W. Logan was writing his report, I 
read a paper before the Institute which I concluded thus :—* It 
may seem strange that during my deseription of the area under- 
lying the Pictou Coal Field, J have made no mention of the Dev- 
onian formation which is so often spoken of in conneetion with the 
strata underlying the coal field. The reason why is this,—there is 
no Devonian to be found there.’ —Transactions, 1870-1, page 75. 
I felt called upon the following session, 1871-2, to maintain 
the conclusion arrived at, after the appearance of Sir W. Logan’s 
Report on the Pictou Coal Field, which I did by adducing the 
evidence which I had discovered in Irish Mountain, McLellan’s: 
Mountain, and Sutherland’s River, in opposition to Sir W. 
Logan’s views, evidence which has not yet been called in ques- 
tion, but which the author of “Acadian Geology,” in accordance 
with his views on Lochaber and Nietaux, would have regarded 
as confirming the opinion expressed by Sir William Logan, 
founded on his authority. 
An application of the preceding to views entertained regarding 
Nictaux is obvious, but as the Devonian age of the Lochaber 
Petraia strata was inferred by the author of “Acadian Geology ” 
from a specimen of Petraia which was Zaphrentis, “a cast not 
sufficiently perfect for specific determination, but not unlike im- 
perfect specimens from the Devonian of Nictaux.’—Canadian 
