66 The Ottawa Naturalist. [June 



SebastopoiTp ^" ^^^ township of Scbastopol, at the lower northwest 

 Clear Lake e,-,d of Clear Lake, near the outlet, there is a large 

 quantity of marl, the depth of which has not yet been proved, and 

 it occurs also in several small lakes adjacent. This locality is 

 about eight miles from the Canada Atlantic railway at Eganville. 

 MacKay Lake ^" ^^^ shore of Hemlock or MacKay lake in New 

 NewEdinburgrhgdinburgh, Ottawa, marl has long' been known to 

 exist, extending over loo acres or more with a depth of at least 

 five feet. The deposit is, however, largely covered with soil and 

 forest growth, but has been locally used to some extent in the 

 manufacture of white bricks. 



The localities mentioned for the province of Ontario do not 

 profess to describe the occurrences of marl lor all portions of the 

 area. Doubtless many deposits occur at various localities, the de- 

 tails of which have not yet reached this Department, but sufficient 

 has been stated to show that the material exists over a great area 

 and frequently in very large and economic quantities. 

 ^^^j In the vicinity of the Ottawa river, on lot i8, range IV, 



Hawksbury ^ggt Hawksbury, there is a deposit the extent of 

 which has not been definitely determined, but it is known to ex- 

 tend over an area from five to ten acres, with a proved depth of 

 2 to 4 feet, and covered with peat for four feet. It has been 

 locally used as a fertilizer by the settlers in the vicinity. 



Province of Quebec. 



In the province of Quebec, marl deposits, while not so widely 

 distributed as in Ontario, are also found at points from the western 

 limit to the peninsula of Gasp^. 



Ar enteuii ^" ^^^ township of Argenteuil, lot 3, range I., marl is 

 nearLachute found occupying the basin of a lake, in depth from five 

 to thirteen feet, overlaid by about nine feet of peat. The area of 

 the overlying peat is about 22 acres. On the same lot, another 

 peat-bog with an area of half a mile from east to west and a 

 breadth of 150 yards occurs underlaid by marl which has a depth 

 of 12 feet. The locality is not far from the line of the Canadian 

 Pacific railway at Lachute. 

 Wentworth Tp On lot 22, range VIII, Wentworth township, marl is 



Eagfle Nest . ..,oi-.,t.t 



Lake reported as occurrmg m the bed of P>agle Nest lake, 



which is a short distance south of i6-Island lake, the quantity not 



