l6o NEW YORK STATE MUSEUM _ 



On the summit of Cap Canon is the summer home of Mr FredericK 

 James. From this spot the well grassed rock surface slopes deeply 

 landward, then abruptly rises at a distance of about 400 feet from 

 the edge of the clifif and the strata stand upright again in a bare 

 dome of rock at which is a now abandoned limekiln. The rock here 

 was burned by Mr Philip Le Boutillier and from him I learn that 

 the burning has been only partly successful but at times a purer 

 limestone has been brought to the kiln from the outcrops at Cap 

 Blanc, 2 miles south. 



Limekiln massive. The rocks at the Limekiln are as a whole nota- 

 bly distinct in character from those constituting Cap Canon though 

 they stand vertical and hold the attitude characterizing the rest of the 

 strata. 



These beds are limestones much seamed with calcite veinules and 

 heavy bedded, largely a limestone conglomerate but with no jasper 

 pebbles as in the limestone conglomerate of Mt Ste Anne to which 

 reference will be made. They have a thickness of 200 feet. A single 

 bed of a similar conglomerate was observed infolded in the schists 

 of Cap Canon. 



Just beneath these on the south slope are even bedded impure gray 

 limestones and from these latter only have fossils been obtained. 

 There is to my mind a reasonable security in regarding these fossil- 

 bearing rocks here in place, though blocks have been found only in 

 displaced condition. Concerning this point, however, I would not 

 venture to be unqualified in my statement. These fossils are : 



Plectambonites sericeus Sow. (very Protozyga exigua Hall 



common) Ambonychia sp. 



Rafinesquina, a geniculated species Ceraurus pleiirexanthemus Green 

 Leptaena rhomboidalis Wikkens 



Though few in number, the species abound in individuals and the 

 assemblage clearly indicates a later stage of Lower Siluric than the 

 fauna in the south flank of Mt Joli, somewhere equivalent to middle 

 or upper Trenton age. The road in front of Mr James's house, as 

 it rises from the depression between the escarpment and Cap Canon, 

 shows trace of an infaulted mass of soft, brown shale elsewhere 

 referred to as occurring on the North beach near the wharf. If we 



