THE PICTOU COAL FIELD — POOLE. 315 



•same as that exposed on McLellan's brook near the east line of 

 the Albion area, and which the anticline repeats on the north 

 .side of Chapel knoll under the old cemetery as the iron bridge 

 of the Intercolonial railway is approached. The grey shales are 

 overlaid by a continuous series of black shales uj) the brook as 

 far as the highway bridge and they contain some bands more 

 compact than others. Those on the edge of the fault have been 

 on fire, while on one a hundred yards below the highway bridge 

 an adit was driven to the southward for oil shale in 1860 and the 

 strata found to continue the curve of the anticline towards Potter 

 brook fault. These black shales are also exposed below the iron 

 bridge on the right bank of the river but dipping to the eastward 

 having again had their dip reversed by the bridge fault, which is 

 parallel to Potter's brook fault, and which is in line with the main 

 fault of the Fraser adit section higher up the brook, and the 

 lypes of the Richardson seam lying intermediate. The black 

 shales both on Potter's brook and on the East river bank are 

 succeeded by a series of sandstone beds confirming the unity of 

 the horizon given to these broken sections. On the East river 

 the series is lost against the North fault, but on Potter's brook it 

 continues and yields the section given by Logan, p. 47. This 

 section, however, is affected by a north and south fault passing- 

 halfway between the Cannel and the Stewart seams, but of what 

 influence is unknown. East of the Stewart seam a north and 

 south fault of some magnitude terminates the section near the 

 Sherbrooke road as shewn on one of the accompanying sketches. 

 The abutting rocks are heavy sandstones which underly the 

 Fraser adit and Marsh pit sections and which cross McLellan's 

 brook Vielow the Widow Chisholm seam. 



The Richardson seam has been lately reopened by a slope 260 

 feet long dipping S. 20 E. 21'^', some 14" south of the true dip, 

 with levels off 85 feet east and 285 feet west past the shaft men- 

 tioned by Logan, page 47. It yield 2' 6'' of good coal. It was 

 assumed to be distinct from the Stewart seam, but the latter is 

 not open for comparison and the point is in doubt. If the hori- 

 zon here given to the lower strata on the river bank be correct 

 the depth at this point to the main seam would not be over 1100 



