NEW BRUNSWICK CAVES. 
16 f> 
St. John. It is evidently an old underground water course, now 
left dry by the drainage passing in another direction, and is of 
considerable size, but as it is fully described elsewhere in this 
Bulletin, it will not be necessary to further refer to it here. 
In concluding this branch of the subject, a mere reference may 
be made to the pot-holes found in several of our rivers, especially 
in the vicinity of the falls, and which, though hardly falling under 
the designation of caves, are of related origin. .By far the finest 
are to be seen in the gorge of the river below the Grand Falls of 
the St. John, where they are of all sizes, the largest attaining a 
depth of thirty feet, with a diameter of sixteen feet at the top, 
widening at the bottom. The latter is usually occupied by 
rounded pebbles of hard rocks, the whirling of which by the 
tumultuous waters has been the main agent in their formation. 
On the Nepisiguit river vertical pot-holes, large enough to conceal 
a man, are found below the Pabineau falls, where the rock is a 
hard granite. On the Pollet River, near Elgin, in Albert county^ 
the Gordon Falls have below them numerous pot-holes in Lower 
Carboniferous conglomerate, and evidences of subterranean cur- 
rents are very noticeable. 
In none of the instances of cave-formation alluded to above 
has any reference been made to the occurrence of statactites. 
Nor are these known to occur. But at certain points along the 
border of the Tobicpie river, in \’ictoria county, are somewhat 
extensive deposits of loosely branching coralloidal or statactitic 
limestone, of Lower Carboniferous age, while the hollow sound 
produced by walking over them would indicate the existence of 
cavities beneath. In the same vicinity are remarkable examples 
of fossil tree trunks, evidently petrified by the agency of calcare- 
ous solutions. 
Caves or Cavities of Uncertain Origin. 
Under this head I would include a number of instances in 
which caves or cave-like spaces occur, and which are not obviouslv 
due to the agencies heretofore described, and some of which can- 
not be thus explained. 
