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BULLETIN OF TIIE NATURAL HISTORY SOCIETY. 
sedimentary rocks now largely eroded awey. Furthermore, and 
this is a point of importance, this same structural valley, with 
similar high bounding ridges, can be traced in one direction far 
to the northward, by way of Lombard Brook, part of the North 
Branch of Gulquac, and a part of the main course of the Right 
Hand Branch, while in the other it can be traced south along 
the main course of the North Branch and thence across to the 
L’pper Nashwaak and on the Keswick. Other similar valleys 
occur both on the east and the west, as I shall show more fully 
in the later note. 
The river now flows in a southerly direction, and for some 
miles consists of a series of boggy deadwaters and pools, 
separated by dark stony rips of little fall and quiet aldery reaches 
of dark water. Thus it continues, though with somewhat in- 
creasing fall, down to the East Branch (or Beaver Brook), 
receiving on the way Franks Brook, which has a low pass of 
1206 feet (as shown by the Intercolonial Surveys) to the head 
of Oven Rock Brook. Below the East Branch, which is a 
smaller and clearer stream, the character of both river and valley 
changes. The river bed gradually becomes stony and acquires 
more fall ; ledges of slate appear, and small falls are formed as 
the river cuts into an old rock floor, which is very distinct in 
places. The Little Falls, with a fine pool below, are of this 
character. Furthermore, the hills gradually close in on the 
valley narrowing it greatly. This character continues down to 
the county line, just below which the Two Sisters Brooks, 
wonderfully alike one another, come falling in close together 
over low cliffs of the old rock floor. Here the river swings to 
the southwest and its bed becomes smoother, shoaler and 
wider, with occasional intervale margin. Thus it continues to 
the Falls, which have two parts, an upper irregular rocky fall 
of 6 or 8 feet now covered by a roll dam, and a narrow broken 
fall of some four feet a few hundred yards below. The dam at 
the upper fall rests upon a very remarkable ledge of greenish 
rock displaying a striking concretionary structure. Great 
rounded concretions of radiating structure, of all sizes up to two 
