NOVA SCOTIAN GEOLOGY—HONEYMAN. 73 
page 7, Sir W. E. Logan says, in reference to certain pre-carbon- 
iferous rocks underlying the Pictou Coal Fields: “No evidence 
was observed by me on McLellan’s Mountain, to show to what 
epoch these older rocks belong, but masses somewhat similar are 
noticed by Mr. Hartley on the west side of the East River, in a 
position where they have been mentioned in his Acadian Geology, 
by Dr. J. W. Dawson, who considered them to be of Devonian 
age, and on his authority they will be so distinguished.” 
In my criticism of this conclusion in Transactions 1870-1, Ist 
paper, I said: “I presume that this language is intended to apply to 
the area indicated on the 8. E. corner of the map which accompanies 
Sir. W. Logan’s Report, which is distinguished by the Devonian 
colouring. Now this area has its N. E. corner at the Falls of 
Sutherland’s River, and its S. E. corner at the bridge at McPher- 
son’s Mills, so that in addition to the northern part of McLellan’s 
Mountain, (range,) the area in question includes also a part of 
Sutherland’s River.” 
In my second paper of the same session, Transactions page 141, 
I wrote: “The supposed Devonian rocks on the west side of East 
River, which are considered by Sir W. Logan to be “somewhat 
similar” to those of McLellan’s Mountain, as indicated on Sir 
W. Logan’s map, by a Devonian coloured area on the north west. 
Here the Pre-carboniferous rocks of Waters’ Hill are regarded by 
Dr. Dawson as “probably of Devonian age,’—vide page 319 of 
“ Acadian Geology” Ist Ed. It will be observed that this cauti- 
ous expression hardly warrants the positive conclusion which 
Sir W. Logan derives from it.” 
When the question of the age of the Pre-ecarboniferous rocks of 
McLellan’s Mountain had to be referred to the authority of 
“Acadian Geology,” it would have been as well to make a direct 
reference. In 1855 the rocks in question were referred to the 
altogether problematical “Devonian and Upper Silurian, mostly 
metamorphosed,’—“Acadian Geology,” 1855, map,—and no one 
had succeeded in finding evidence up to the time that Sir W. 
Logan examined them and found no evidence by whieh he could 
determine their age. 1. e., 1868. 
It was in the summer of 1869 when Mr. Hartley was working 
