THE PICTOU COAL FIELD — POOLE. 331 



The slope on the Six Feet seam begins with an inclination of 

 some 22'^ which at a depth of 1800 feet is reduced to 11° and the 

 bottom at the basin is reached at a distance of 2460 feet. The 

 workings westward find the seam varies in thickness, the thin- 

 ning being brought about by the substitution of lenticular masses 

 of compact black shales next the roof of the seam which is not 

 disturbed. These masses ma.y be outliers of a regular replace- 

 ment of shale for coal in that direction where all coal seams 

 appear to thin. 



Westward of the working Six Feet slope the seam has been 

 followed nearly to the Vale lease line, where the ground rapidly 

 rises and deflects the out-crop to the south, assisted perhaps by 

 some east and west dislocations parallel possibly with the Law- 

 son fault. West of the lease line the croj:) has been proved as the 

 Mountain seam along a ridge of high ground that borders the old 

 rocks, and it is underlaid by a small seam discovered near where 

 the road at Finlay McDonald's crossed McLean's brook. Still 

 further w^est in the mountain section, and up against the old 

 rocks on A. McLean's farm, the same seam shews, but it is not 

 believed to come to the surface beyond this point, although the 

 syncline extends past McLellan's brook for a short distance. 



Eastward of the slope in the Vale area the crop is doubtless 

 broken by the several faults proved in the workings of the under- 

 lying McBean seam, but it has not yet been mined. The coal 

 got in a pit on the northeast side line of the area where Marsh 

 brook takes its turn, is thought to be of this seam, and so also 

 with the latest exposure on the new road 20 chains northwest 

 from the pit on the side line where a five feet seam dips at a high 

 angle in the opposite direction towards the south. The northern 

 and western outcrops of this seam are not known with certainty, 

 any wdiere on McLellan's brook. 



Of the strata lying between the Six Feet and McBean seams 

 nothing new has been discovered since Sections 6 and 7 were 

 compiled, except that the total thickness, instead of being 800 

 feet, appears to be proved by the workings in both seams to be 

 something less and about 700 feet, with a tendency to thicken to 

 the westw^ard. Throughout the series of beds having a west- 



