S94 On Metallic Minerals. 



1st. — Between Cranberry Lake and the strait leading into 

 Dog Lake, the old red sandstone, in nearly horizontal 

 strata occurs. It is described as being in very thick beds, 

 and to dip away in several directions as south-east, west, 

 south of west and north-west at a variable angle of fi*om 

 b° to 10°. It is red and vvhite in bands parallel to the 

 lines of stratification, and resembles very much a red sand- 

 stone, which is purchased in the United States for the use of 

 the iron furnace at Marmora, for which purpose, I think it 

 would answer, but experience must decide that. From the 

 creeks or south-east outlet of Hougliborough Lake, an 

 inferior sandstone, a])parently belonging to the same for- 

 mation is procured, some of the sandstone from hence is 

 a species of grey wacke. 



2d. — Is a black limestone of a very compact structure, 

 and somewhat flinty aspect. It is transported from near 

 Auley Mills to Jones' Falls, and burnt for the supply of 

 lime for that place. No limestone having been discovered 

 nearer ; it is described as being situated on a high ridge. 



3d. — Sandstone from a high ridge between the lakes at 

 Brewer's upper mill, and the quarries described under No. 

 1. It is close to the line of the canal, horizontally stratified 

 or nearly so, and superincumbent to a mass of very friablfe 

 white and grey crystalline limestone. This sandstone is»of 

 a yellowish white colour. 



4th. — Is the friable crystalline limestone alluded to above, 

 and which, from the looseness of its laminar texture, 

 friability and colour, resembles some calcareous spars. It 

 was also alluded to in describing a similar aggregate at the 

 mouth of the Gannanoqui. It is described as underlying a 

 sandstone, which I venture to name the old red, simply 

 from the fact that wherever it is found in this country, it 



