26 BULLETIN OF THE NATUBAL HISTORY SOCIETY. 



brian and other rocks of St. John city shared in the distur- 

 bance. Indeed it has been said that New Brunswick owes 

 her chief physical features to this revolution, some of her 

 highest hills and ridges, and the basins and hollows where 

 later deposits have accumulated. It was the last great move- 

 ment of the kind New Brunswick experienced; for throughout 

 the province we see the beds of the next formation — the 

 lower carboniferous — almost as level now as they were when 

 deposited on the ancient sea bottom. 



I have mentioned before terraces near the mouth of the 

 river. Above the Narrows they are again to be seen, and 

 here much higher, being as high as forty feet and over, as if 

 during the glacial period the Narrows had been blocked with 

 drift and the river converted into a lake; and in support of 

 this idea we notice in ascending, that as the river rises the 

 height of the terraces above it decreases. But it is generally 

 to be noticed that when the river valley is wide, terraces are 

 extensive and low, while when the valley is contracted they 

 are narrower and to be found at higher elevations. 



Above the mouth of the Otelloch Stream the railway cuts 

 through an alluvial bank, a spur of a terrace, and giving a 

 section of the surface deposits, extending back from the 

 place. The railway rests on a bed of light colored clay, above 

 which in the section is a layer of dark loam, a foot or two 

 thick, abounding in plant remains, grasses, twigs and stems 

 of jilants, and through part of the thickness remains of small 

 beetles were common. Above this are ten feet of red gravelly 

 clay, very springy (for water cannot get through the pure clay 

 below) which caused a great deal of trouble in excavation. 

 These beds have a decided dip up river which is especially 

 noticeable on account of the dark layer. 



In the high bluff above the mouth of the Odell River, 

 beds of gravel and sand, with boulders, dip down stream at 

 angles of about forty-five degrees. This is perhaps due to a 

 ridge of rock in the centre of the hill, below which gravel and 

 sand carried over by the current would necessarily be deposited 



