OF DYNAMICAL GEOLOGY BAILEY. 185 



It is not probable, in any of the cases above cited, that the 

 distance of boulder travel has been great, the rocks being 

 similar in nature to those occurring in situ at points not widely 

 removed. Of true erratics, or long distance boulders, the most 

 noticeable, perhaps, was one of dark grey felsite-conglomerate, 

 seen in Tiverton, near the middle of Petite Passage, and probably 

 not more than 20 or 30 feet above the level of the tide. No 

 rock of this character has yet been observed in south-western Nova 

 Scotia, but it is common in southern New Brunswick, whence 

 in all probability it was derived. Granite boulders were also 

 observed in this vicinity, as well as on Briar Island, which may 

 also have come across the Bay, though possibly derived from the 

 granite of the Blue Mountains in Nova Scotia, some 40 miles 

 distant. Boulders of the traps of Digby Neck are occasionally 

 met with over all the south-western counties, even as far as the 

 Atlantic shore. 



Of ordinary terminal Moraines, the interior of Queen's, Shel- 

 burne, and Yarmouth Counties affords many examples, and to 

 their presence and influence many features in the drainage of 

 the country are no doubt due. The headwaters of the Port 

 Medway, Liverpool, Jordan, and other rivers may be cited in 

 illustration. In a similar way some of the islands off the coast, 

 and particularly those which, in such large numbers, dot the 

 surface of Tusket Inlet, are, in all probability, of morainic origin. 



In addition to moraines, the peculiar accumulations known 

 as Kames or " Horse-backs," are abundant in south-western Nova 

 Scotia, and are, in some instances, of remarkable character. A 

 ridge, which is probably of this nature, crosses the Liverpool and 

 Annapolis road in the northern part of Maitland Settlement, 

 whence it was followed by W. H. Prest in a direction E. or ENE., 

 across the Maitland River to Gull Lake, and then northerly, by 

 Gull Lake Stream, to the south of Perrot's Settlement, while in 

 the opposite, or westerly direction, it was similarly followed, 

 westerly or west by south, by way of Long Lake to Frozen 

 Ocean, finally crossing into Digby County, south of the Sissaboo. 

 A peculiarity in this case is that, while consisting, like other 



