less than 200 feet above the level of Ontario, and it is rich in silver, lead, copper, and iron, and near the Lake Marmora, in white marble. In the neighbourhood of Gunanoque, a beautifully variegated marble of green and yellow is found; and, in the vicinity of Kingston, there is an immense bed of black and also gray marble. “Farther to the north, beyond the French River, which falls into Lake Huron, are immense mountains, some of them of great elevation. Many of the mountains which describe the great valley of the St Lawrence, are from 2000 to 3000 feet above the level of the river; and that part of the chain which approaches the city of Quebec, on the northern side of the river, is worthy the attention of the geologist; and, in a particular manner, of the mineralogist, from the hope there is every reason to entertain that these mountains yield several rare and valuable kinds of earth for pigments, which may hereafter become articles of commerce. When in Quebec, some years ago, the writer of this sketch was shown several fine specimens, in the seminary of that city, which had been procured in those mountains at no great distance from Quebec; amongst which may be mentioned a rich brown resembling the Vandyke brown of artists; a yellow, equal to that of Naples, and an extraordinary fine blue, of a tint between that of indigo and the costly ultramarine. The subject is mentioned in this place with a view of exciting further inquiry and experiment; because, at present, the artists and colourmen of London are principally supplied with their most valuable pigments from Italy. A scientific gentleman who has lately explored the coast of Labrador, and the Gulf of St Lawrence, was very successful in his mineralogical pursuits, particularly in the neighbourhood of Gaspé, from whence he obtained some new, and many valuable and beautiful specimens of the quartz family—including a great variety of cornelians, agates, opals, and jaspers; several of which have been cut into useful or ornamental articles at Quebec. From Labrador the same gentleman brought several large and beautiful specimens of the spar so peculiar to that coast, and which is commonly known by the name of Labrador spar, of a brilliant cornelian or ultramarine tint, with others of a green, yellow, red, and one or two of a singularly fine pearl-gray colour. These specimens were found at Mingan, imbedded in a rock of granite.