NORTHERN OUTCROP, CUMBERLAND COAL FIELDS—GILPIN. 395 
exposed, and have been eroded into a depression to the north of 
the conglomerate, recalling the great mass of soft strata lying 
between the upper part of the Millstone Grit and that section of 
it which furnishes the Joggins grindstones. 
The Styles, St. George, Chignecto and Scotia seams all occur 
at a vertical distance above this conglomerate of 450 to 500 feet. 
We thus find ourselves provided with a clue at each end of this 
coal field, and the conclusions to be drawn from the facts I have 
endeavoured to give you in the briefest possible manner, are of 
considerable importance in their bearing on the coal values of the 
district. 
On referring to the section of the Productive Measures, it will 
be noticed that the New Mine seam, which Dr. Dawson considered 
on the same horizon as the Victoria and Chignecto seams, is 1,100 
feet above the Millstone grit. The equivalents, therefore, of the 
seams found at the Styles and other eastern mines must be 
sought for in the Joggin section, half way between the New Mine 
seam and the Millstone Grit. 
There is a coal bed found at the Joggins 520 feet above the 
Millstone Grit, presenting the following section, viz :— 
Ft. In 
COMI, BE Re RAs tts So. RIBS, 0 4 
SERN RE 1S DUM aA hs ates 2 eed SMS cance 1 6 
SLD BL RS, SPER ECAR an. le hog 0 6 
‘S] Po RR Se EES | a ne Ra ee Tops 
METER Ne RT Rees ug ss sn oaand catia Ale ae aioger 3 0 1 
Potele: Bet OS CRA Ye a: 8 
This may, so far as our data extend, be considered the equivalent 
of the eastern seams. It would then appear, that, if the condi- 
tions necessary for the formation of coal beds were as favourable 
in the eastern part of the district as they were at the Joggins, 
workable coal beds would be expected to exist on the horizons of 
the New Mine and main seams, respectively 1180 and 2289 feet 
above the Millstone Grit. Judging from the thickness of the 
seams known in the district east of the Maccan River, these con- 
ditions have been more favorable than at the Joggins; and there 
would, as the thickness of the measures and their characteristics 
