186 SOME NOVA SCOTIAN ILLUSTRATIONS 



kames, partly of sand and gravel, the main source of its 

 materials, blue slate, would seem to have been derived from the 

 south, not from the north, and from beds which are somewhat 

 remote. The course of the ridge, across the general slope of the 

 country and parallel with the coast, is also peculiar, suggesting a 

 possible beach origin. 



Other good examples of kames or gravel ridges are to be 

 seen in Shelburne County, between Clyde Village and Port 

 Clyde, and at the head of a long, narrow promontory separating 

 Negro Harbor from Port la Tour. In each of these cases the 

 ridges are several miles in length, somewhat tortuous in their 

 course, but with a general southerly trend, are from 20 to 40 

 feet high, and usually just broad enough at top to afford room 

 for a roadway, a use to which, in both of the instances given, 

 they have been applied. 



But by far the most remarkable of such ridges is the so-called 

 " Boar's Back " of Digby County, the total length of which, 

 though somewhat interrupted, cannot well be less than twenty 

 miles. The best place for its examination (where also are the 

 " moving stones " referred to in Lord Dunraven's account of his 

 travels in Nova Scotia, regarded by him as inexplicable, but the 

 result, probably, of the expansion of lake ice), is on the " Hecta- 

 nooga Road " in Yarmouth County, a short distance north-west 

 of where this joins the Weymouth Road, near Wentworth Lake.* 

 As usual this kame consists of sand and gravel, with some 

 imbedded boulders, and also, as usual, it is bordered on either 

 side by extensive low and flat tracts, occupied mainly by bogs 

 and barrens. In a few instances, as on the Jordan River, above 

 Jordan Falls, the kames are found to bifurcate, or to enclose 

 deep circular or oval depressions, forming " kettles." 



IV. UPLIFTS AND DISLOCATIONS. 



Marine and River Erosion. No finer opportunity for the 

 study of disturbed strata could readily be found than that 

 afforded by the south coast of Nova Scotia. Almost every 



* See Church's Map of Digby County. 



