THE PICTOU COAL FIELD — POOLE. 267 



The cong-lomerates on the Middle river that occur at the bend 

 •of the river next abov^e French's tunnel dip N. 42° E. 50°. This 

 is at a much steeper angle than that of the" beds on McLeod's 

 brook, but it corresponds with the increased inclination of the 

 ■overlying beds in the extension of the equivalents of the coal 

 bearing beds of Westville, as they pass westward and approach 

 the North fault. Along the lower part of Brown's brook which 

 joins the Middle river half a mile above Alma bridge the dip is 

 well shewn and the general trend i.s east and west, inclinino- 

 directl}^ towards the New Glasgow conglomerate South of the 

 bridge over that brook the rocks appear to be vertical and with- 

 in 100 yards of this exposure, upstream, there are beds of red 

 ■conglomerate probably the extension of the beds seen on the 

 Middle river. 



Passing now back into the coal field there will be noticed con- 

 formably underlying the measures exposed on McLellan's brook 

 just below the grist-mill a series of beds some 30 feet thick of 

 which the lowest members are conglomerates and these it is 

 suggested represent the Millstone Grit but greatly reduced in 

 thickness. 



Further east the series at the Vale, given in section number 

 vii, page 81, is reached and contact of the coal measures and the 

 Lower Carboniferous without any Millstone Grit is again met 

 with in section number ix, page 37. 



Pine Tree Brook Section : — To the description by Sir Wm. 

 Logan of the triangular area which has its apex at New Glas- 

 gow, its bast/ at Sutherland's river, the slope of Fraser's 

 mountain for its northern side, and to complete the boundary 

 has the higher ground along which Logan places the course of 

 the great North fault of the coal field, may be added further 

 information respecting the side last named that suggests an 

 alternative conclusion to that of the Survey. 



Pine Tree Brook rises near New Glascfow and flows alono- the 

 strike of strata that have a general dip northward towards the 

 conglomerate ridge and appear to be continuous to Pine Tree 

 Gut. Large slabs of the rock called " black bastard limestone' 

 -are scattered from one end of the section to the other and at a 



