PICTOU ISLAND — MACKAY. 79 



wliicli would make good grindstone. Fossil plants and stems 

 and trunks of trees imperfectly preserved are observal)le at sev- 

 eral points, and are often strongl}- impregnated with iron p}-rite. 

 No indications of copper were seen, although such are very com- 

 mon in the Permian rocks of the mainland. Strata of limestone 

 probably run under the island. It is exposed towards the west 

 end of the south coast and again apparently on the north side of 

 West Point. Its probable outcrop will l;)e imder the drift 

 parallel to the anticlinal axis and near the northeast coast, its 

 eastern outcrop being probably contained in the concealed mea- 

 sures immediately south of Seal Point. Westerl}^ it probably 

 curves parallel to the west coast to its exposure on the south. 

 The course of the anticlinal from near Light House Point to north 

 of West Point is as has been mentioned about 84". The westerlj^ 

 dip of the rocks at the commencement seem to indicate that its 

 axis is slightly tilted. The sections begin at Light House Point 

 and follow the shore northward, then west and south and east to 

 point of beginning. They are of course only approximate, the 

 dip being too changeable, particularly in the sandstone, to admit 

 of close measurement. A thickness of only 562 feet of strata 

 occupies the whole shore. 



SECTIONS ON THE SHORE OF PICTOU ISLAND. 



Section I. 



From Lighthouse Point, westiuard, in ascendivg order. 



Ft. In. 

 1. Gray sandstone of Lighthouse Point, in thick and 



shaly beds: with carbonized plants and spheroidal 

 concretions ; false bedding. The upper part is 

 fine. Certain bands have been quarried, lait the 

 want of a shipping-place has retarded the devel- 

 opment of this industry. Dip 24° < 3'^ (astro- 

 nomical, the variation being about 24° W.). Clifts 

 15 feet high. Of indefinite thickne.ss ; exposed 

 on l:)oth sides of the anticline for a great distance 173 



