THE PICTOU COAL FIELD — POOLE. 341 



and at the mouth of Smelt brook* in the strata over the con- 

 glomerate. In the coal measures of McLellan's brook there was 

 Patrick's slope below the Fulling mill and numerous trial pits in 

 other beds. The band that overlies the Main seam about 1000 

 feet was opened at several places, its course shewn by a line 

 on the map, approxiinates to the position given to the Three and a 

 half feet seam of Hartley, west of the East river. On Potter's brook 

 a level was run in on a bed 100 yards below the liighway where the 

 black shales are overlaid by the sandstone series. A shaft was 

 sunk on the Rev. A. Stewart's farm, near the junction of the 

 Vale Railway with the Intercolonial, and south of the coal chute, 

 where the dip at 72 feet was S. SO" E. 25°. 



Fossils. 



As the Transactions of the Institute contain descriptions and 

 lists of most of the known fossils of this district, it is only pro- 

 posed to here briefly summarize the chief localities where those 

 characteristic of each system may be found. 



Cambro- Silurian. — No organic remains have as yet been de- 

 tected in the rocks classed as of this age. 



Siliiriiin. — Dr. Honeyman-f- has already enumerated many of 

 the fossils known in the rocks of this system, some of which 

 may be found south of Park's mill on Sutherland's river, on Mc- 

 Lellan's brook, above the Grist mill, and at Mountville, on 

 McGregor's mountain, at ex'posures on both sides of the main 

 road. 



Devonian. — On the north side of the coal field near the mouth 

 of McCul loch's brook and at the foot of Waters' hid on the 

 same brook a few fragments of plants have been detected.^ And 

 on the south side, in the McKay brook beds. Hartley's No. 2 

 section, imperfect remains of plants have lately been found at 

 the base of the section where some beds are stained by copper. 



Loiuer Carboniferous. — The limestones supply no such collec- 

 tions as can be made at Windsor and Shubenacadie, all the 



* Vol. I, pao-e 36. 



t Ami, Trans., Vol. I, Part 2, Se.". Sepes. 

 % Honeynian, Trans., Vol. V, p. 209. 

 Acad. Geo]., p. 502. 



