184 The Ottawa Naturalist. [January 



the valley. (Plate V, Fig. i.) Along the river front, the length 

 of the landslide was nearly 600 yards, but near its eastern end 

 a small wooded knoll rises above the general level to a height of 

 about 35 feet, which must be either underlain by rock or made up 

 of a very homogeneous and impervious clay. This small hill, 

 forming a rudely triangular buttress, with the apex towards the 

 land and a base measuring about 100 yards along the river, re- 

 mained unaffected by the movement. The slide thus divided into 

 two parts, by far the larger amount of material reaching the river 

 to the west of the small hill already mentioned. The greatest exca- 

 vation is as usual along the base of the hill and at the western or 

 upper end of the slip, while the crevasse, marking the eastern limit 

 has been concealed, to a large extent, by the piling up of material 

 into a series of hills, rising from 12 to 30 feet above the clay plain, 

 and made up of loose material derived from the rest of the area. 

 This crevasse, which originally marked the eastern limit of the 

 slip, ran with a gentle curve immediately to the west ot Brazeau's 

 residence, the movement overturning his barns and some out- 

 houses, although the residence, carpenter-shop and milk-house 

 were not affected in the general commotion. There were likewise 

 no cross fractures produced in the area on which the house stood, 

 for the water in the well, which is about 12 feet deep, showed no 

 signs of any disturbance. The western limit passed close to the 

 east of Duncan McMillan's house and outbuildings, some of the 

 latter being on the verge of the crack thus produced, while the 

 southeastern edge reached to the slope of the hills of gneiss and 

 granite which here mark the limits of the valley. The Government 

 dam, which was completed some years ago, was pushed about 100 

 yards from its original position and now points up instead of 

 across the stream ; while the locks, constructed at great expense, 

 were filled almost completely with the debris from the slide. 

 A barn, full of hay, situated near the middle of lot 7, con. I of 

 Portland was carried down the stream, on a huge block of clay, 

 and now occupies an island in the river, nearly half a mile from 

 its original location. Happily not a single lite was lost, though, 

 in the circumstances, it seems miraculous that all escaped. 

 About ten head of cattle were killed and some of ihese were com- 

 pletely entombed by the overturned clay. Only one man was an 



