? 
80 A List of Minerals and Organic Remains 
of Montreal, (one hundred and seventy-four miles,) is white, 
bat with ferruginous spots and clonds, hard, fine-grained, 
without cement, and contains thick layers of large and 
small nodules of crystalline quartz, jogs in horizontal 
Jines. It forms cliffs an hundred feet high i 
the Thousand Islands, which rest on the rae ee grain- 
ed gneiss (often a granite,) which abounds so in the 
north and north-east, and passes largely and frequently into 
primitive white quartz rock; thus disclosing a possible 
souire of the sandstone and quartz nodules. Where clay 
s the cement ‘an argillaceous sandstone or gray wacke is 
finished. The former of these I have never seen in contact 
er me inelined roeks. It occurs very distinctly in the 
iagara, the lower strata of which, (and partic- 
Seely shee on which Queenston stands,) are ‘almost ferru- 
decks — The nearest they is on the north shore 
of Lake Simcoe, ninety miles _ From the nature of the 
poe reinains, and other eee of the limestones cov- 
ering this sandstone, I am inclined to believe the latter to 
e the old red; which is often thus intermixed with argil- 
laceous matters. At Dunkirk, on the south side of Lake 
Erie, Mr. Hulbert has bored through these rocks to the 
depth of 682 feet, (117 feet below the surface of the At- 
lantic,) and without meeting with salt. The above obser- 
vations apply to the fine sections in the bed of the Genesee 
river; but [ have not sufticiently examined the fossils in 
the limestone of that locality. Its sandstone has large but 
indistinct casts of what I suppose to be encrinites; but 
which may be vegetable; but in either case resembling 
the old red sandstone. .It may be added that it is on the 
same level with, and not very far from the sandstone of the 
vicinity of Kingston ; but similarity i in level, taken by itself, 
is not an unerring test of similarity i in age. In one part of 
a district or lake, grani 2, gneiss, Kc. ~~ attain a given el- 
covered with gray wacke only; 
not distant place these rocks 
lay not rise to. -withia some thousand feet of that height; 
buried under all the succeeding strata up to the 
x above the London Clay. 
stone of Lake Huron, the Falls of St. Mary and 
is parti-coloured, ferruginous, arenaceous, 
or consisti very small quartz nodules. {t is usually 
