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. 



Coal 4 



Shale 1 6 



Coal 6 



Shale 1 3 



Coal 1 



Total 3 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 



