The Geology of the O. and P. S. Railway. 171 



largely in drift gravel and sand, which has replaced the clays 

 which form so prominent a feature to the eastward. These 

 sands have a wide distribution in all directions and the dis- 

 tribution of the drift in this vicinity forms an interesting subject 

 of study. Great blocks of the Black River limestone occur here 

 and there, and a very interesting development in this connection 

 is the number of them observed on the high ridge to the south 

 of Clear Lake at an elevation of nearly 1400 feet above the sea, 

 along the Brudenell road. 



The country west of Golden Lake now becomes much 

 more rugged, the surface being hilly and the valleys occupied 

 largely with drift sand and gravel. Thence on to Barry's Bay 

 the rocks are mostly granitic and gneissoid, the limestones 

 having but a small development ; but a small outlier of Palaeozoic 

 rocks was noted in a shallow cutting on the road about four 

 miles west of Killaloe station, which appeared to belong to the 

 Chazy limestone formation, but from which no fossils were 

 obtained, and its exact horizon is therefore as yet undetermined. 

 The granitic character extends westward from Barry's Bay for 

 a long distance but the geology of the western portion of this 

 road has not yet been examined. 



Many interesting observations on the striae have been 

 made and the general course of the ice movements have been 

 approximately outlined. These will however form the materials 

 for another paper by Mr. Wilson on the surface geology of the 

 area which will be of much interest and value. 



In addition to the locality at Carp where marine shells can 

 be obtained it may be of interest to note that these fossils were 

 also observed on the summit of the Laurentian ridge north of 

 Kinburn.and easily accessible by the road leading directly north- 

 east from that station, at about three miles distant. Another 

 interesting locality,for these shells, readily reached from Glasgow 

 station by the road leading north from that point, is the summit 

 of the ridge to the south of Sand Point, which also is a station 

 on the Canadian Pacific railway. The shells at this place are 

 strewn over the surface of the Black River or lower Trenton 



