SOME LOCAL DETAILS. 161 



tiaii rocks belong, as they are found in this connection 

 not only along the whole south shore of the St. Lawrence, 

 but even in Prince Edward Island and in Nova Scotia. It 

 would be important to distinguish in Anticosti this upper 

 drift more particularly from the lower boulder-clay when 

 this may occur, and to observe any instances of glacial 

 striation. 



With reference to the levels above the sea, it is to be 

 observed that along the shore of the St. Lawrence there 

 is usually a raised beach only a few feet above the level 

 of the sea, and on winch shells and bones of whales 

 frequently occur, and a well-marked terrace, with beach 

 deposits and boulders, at a level of sixty or seventy feet 

 above the sea level, and this would appear to be the case 

 also in Anticosti. 



Before proceeding up the St. Lawrence valley into 

 Canada proper, I may cross to the south side of the gulf 

 of St. Lawrence and notice the drift-deposits of Prince 

 Edward Island, Nova Scotia and New Brunswick, and 

 their connection with those of the state of Maine. 



IV. — Prince Edward Island. 



The Triassic and Permian rock formations of this 

 island consist aluiost entirely of red sandstones, and the 

 country is low and undulating, its highest eminences not 

 exceeding 400 feet. The prevalent Pleistocene deposit 

 is a boulder-clay, or in some places boulder loam, composed 

 of red sand and clay derived from tlie waste of the red 

 sandstones. This is filled with boulders of red sandstone 

 derived from the harder beds. They are more or less 

 rounded, often glaciated, with striae in the direction of 

 their longer axis, and sometimes polished in a remarkable 

 manner, when tlie softness and coarse cliaracter of the rock 

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