THE PICTOU COAL FIELD — POOLE. 307 



under the lea of Weaver's mountain where the seams would be 

 in depth, coal of good quality, there are at present no means of 

 knowing. Hartley gave a fault at the McLeod pit an east and 

 west course, but on evidence no longer available, while in one of 

 the adjoining pits a small fault was seen which had a bearing 

 parallel to the Stair pit and the upper English slope fault, which 

 it may here be mentioned have a down-throw to the northeast of 

 28 and 23 feet respectively. 



Reverting to the west side of the East river and the structure 

 of the higher measures that occupy the bottom of the trough 

 abov^e the 1,000 feet of barren beds that directly overlie the Main 

 seam, and which came under review of the Survey in connection 

 with the three and a half feet seam. This seam is said (pages 77 

 and 83 of the Report) to have been cut in a fault 2 chains north 

 of the culvert of the Intercolonial Railway over Coal brook, close 

 to the Foord pit, and to be dipping north. At this point, the 

 shallow entrance to a cutting, there is now no trace of coal, but 

 at a distance of 6 chains a seam does show dipping in the reverse 

 direction S. 20, W. 24°. 



The northerly dip of this seam is no longer exposed on Coal 

 brook, nor is it now to be seen on the Albion branch railway, but 

 trial pits near the stone retaining walls of that railway at Hun- 

 gry Hole proved a continuation westwardly of the southerly dip 

 which became deflected more and more to the westward on a small 

 water run as it was followed northward. These reverse dips show 

 a narrow syncline opening westward into the trough of the field 

 further proved in 1877 by the Foord pit dip slants, Muir's, which 

 also negatived the assumed westward extension of Potter's brook 

 fault previously discussed. This synclinal fold, though opened 

 out and flattened, is still noticeable on Muir's slants by an undu- 

 lation in the pavement. To the eastward it seems to have carried 

 its influence across the river and to show as a shallow undulation 

 immediately south of the mouth of Potter's brook. On the 

 southern rise of this undulation on the river's bank crops a black 

 compact cannel like band that was mined in 1860 for oil shale. 

 It is also exposed by the undulation at the mouth of Potter's 

 brook, dipping in the reverse direction, and repeated on the side 



