338 GEOLOGICAL NOTES — MACDONALD. 



sheltered from the prevalent south-west winds,a section that would 

 reveal the internal arrangements of this remarkable formation. 

 Nor was I disappointed, for while plodding along the land wash in 

 company with the south side patrol, at a slight turn in the 

 coast, we came suddenly upon a beautiful escarpment some 80 

 feet high and reaching inland about 500 feet. 



The late southeast gales had undermined the embankment at 

 this place causing a downfall, and thereby had produced a fresh 

 exposure of the sand cliff. 



The section of this exposure is as follows :— 



1. A strata of dark ferruginous sand. ....... 2 feet. 



2. Dark mottled Ferruginous, Siliceous and 



Garnetiferous sand 50 feet. 



3. Garnetiferous and Siliceous only 20 " 



4. Siliceous sand, light buff colour, with few 



garnets 10 " 



On comparison with another exposure seen subsequently, I con- 

 sidered this as a typical section of the whole formation of this 

 Island. 



Here my friend, the patrol, kindly offered to take me to a 

 place on the south side of the lake where he informed me there 

 was an exposure of jet black sand. Thither we turned our steps 

 when a recall from our steamer somewhat abruptly terminated 

 our expedition in that direction. A sudden shift of wind and a 

 fast rising sea necessitated our presence aboard, and in a few 

 hours we were heading towards the coast in the teeth of a north- 

 wester. 



CAPE ROSIER. 



From Grand Greve to the summit west of Cape Bon Ami the 

 road tends north-eastward across the Gaspe limestones, which 

 are here obscured by drift. 



The summit is of grey calcareous shale. From this point the 

 scenery is grand and imposing. 



A few feet from the right of the l'oad the precipice is perpen- 

 dicular about 700 feet. On the left is an escarpment of upwards 

 of 1200 feet, in many places overhanging the tide. 



