IN SEARCH OF FOSSILS 



be seen. This granite is capped by the beacon sand- 

 stone on the tops of the hills, but the dolerite seems to 

 have died out, with the exception of the upper flow. 

 This formation is as it should be, taking into considera- 

 tion the horizontal structure of the rocks, and it was the 

 fact that I doubted the existence of Beacon sandstone 

 so low down the series that brought me here, as much as 

 the ex]3ectation of finding fossils if the mapping should 

 be correct." 



At this time thawing was proceeding rapidly on 

 the glacier. The party made for the north wall of the 

 glacier, but was stopped by a precipice of ice, 200 to 

 300 feet in height, with a stream of water flowing at 

 its foot. The deeper ripple-cracks and potholes were 

 filled with water, and water was streaming down the 

 convex face of the glacier to the stream which was 

 roaring beneath the ice-face. The scene was a magnif- 

 icent one, but the conditions were unpleasant from 

 the point of view of the party. The ice was separated 

 from the rock at the sides of the glacier by a thaw-gully 

 about fifty feet deep, with a stream of water flow- 

 ing at the bottom. Then came the lateral moraine, which 

 was still within the region in which the rock-heat was felt, 

 and formed a depression some three to six feet below the 

 main surface of the glacier, commencing as an abrupt 

 rise, almost perpendicular, but somewhat convex. 

 After this came the ordinary billowy surface, and the 

 next stones met with formed a sub-medial moraine 

 not sufliciently thick to efl'ect any lowering in the general 

 level of the surface, although each stone was surrounded 

 by its own hollow, filled with thaw water. Along the 

 middle meandered a small stream, a few feet wide, with 

 the bottom of its channel filled with morainic gravel 

 matter. In the evening freezing commenced in the 

 potholes that were sheltered from the rays of the sun. 



63 



