6. Ramsay, O., lot 25, range 6....... a. A six-inch cube of serpentine limestone, dressed. Geological Survey. This handsome stone has never been quarried, but could be obtained in blocks. of large size.-Laurentian. 7. Ramsay, O., lot 24, range 8...... a. A six-inch cube of crystalline limestone, dressed. Geological Survey. The quarry from which this stone is derived is situated close to the Indian River. Here the limestone occurs in great thickness. It is white, highly crystalline, and contains scales of graphite. It has been extensively quarried for lime burning, and small quantities have been employed in Pakenham and Almonte for foundations and facings of buildings.-Laurentian. a. A six-inch cube of serpentine limestone, dressed. The band of limestone from which this block was taken is largely developed on the third lot of both the fifth and sixth concessions of Pakenham, and is associated with rust-coloured hornbiendic gneiss. It has never been quarried for building purposes, but, notwithstanding its being serpentinous, is locally employed for making lime. Blocks of any required size for building purposes could be readily obtained When polished it makes a handsome marble.-Laurentian. 10. McNab, O., lot 11, range 3...... a. A six-inch cube of limestone, dressed. Eric Harrington, Arnprior. Among the limestones and dolomites of the Calciferous formation there are many beds which afford durable material for building purposes, though the beds as a rule are not very thick, and the stone is often rather hard to dress. The limestones are bluish-grey to brownish-grey in colour, compact and generally break with a conchoidal fracture. They contain more or less magnesia, and appear to pass by insensible gradations into dolomite, which forms the largest part of the formation. A specimen resembling that exhibited was found to contain 81.78 per cent. of carbonate of lime, and 13.68 per cent. of carbonate of magnesia. The bank of British North America, and other buildings in Arnprior, are built of stone from this locality. Price of ashlar at the quarry $1.50 per cord.-Calciferous formation, Lower Silu rian. 11. Pembroke, O., lot 12. range 1. a. A six-inch cube of limestone, dressed. Geological Survey. There is a fine quarry at this locality. The beds are from three to eighteen inches thick. An analysis of a specimen like that exhibited gave, carbonate of lime 83.96, carbonate of magnesia 9.29, carbonate of iron 0.69, insoluble 6.06.Chazy formation, Lower Silurian. 12. Rockville (Gloucester,) O... a. A six-inch cube of limestone, dressed. J. & S. Young. The "Rockville Limestone Quarries " are situated about three miles from the city of Ottawa. The thickness of limestone exposed by quarrying is about twenty feet, consisting of beds of from three inches up to two feet six inches in thickness. The stone dresses well, and is largely used in Ottawa, where the court house, city hall, French cathedral, and many other large buildings are constructed of it. About 25,000 cubic feet of cut stone are sold annually, besides large quantities of ashlar and rubble, and in the three months ending February, 1876, over 20,000 cubic feet of stone were quarried and dressed for the tower of the west block of the Parliament Buildings. The price of the cut stone at the quarries is from thirty to eighty-five cents per cubic foot, according to the size of the blocks; and $5.00 per toise for ashlar -Chazy formation. 13. Grenville, Q... a. Two six-inch cubes of crystalline limestone, dressed. Geological Survey. From the great band of Laurentian limestone called by Sir William Logan the "Grenville band," and estimated by him to have an average thickness of 750 feet. The quarry from which the specimens were obtained is situated about half a mile from the Calumet mills, and both varieties of stone were employed in the construction of the Northern Colonization Railroad bridge over the Calumet River.Laurentian. 14. Lachute, Q., (McGregor's quarry). a. A six-inch cube of crystalline limestone, dressed. Geological Survey. An extensive outcrop of the Grenville band occurs on the farm of Mr. McGregor, near Lachute, and has recently afforded large blocks of stone for the piers of the Northern Colonization Railway bridge over the North River. It contains brown tourmaline in irregular grains and crystals, mica, numerous scales of graphite, and more rarely quartz and magnetic pyrites.-Laurentian. 15. Pointe Claire, Q... a Two six-inch cubes of limestone, dressed. R. Forsyth, Montreal. The beds of limestone quarried at Pointe Claire are from one to three feet thick, and belong to the lower portion of the Trenton group. The stone is compact and dark grey to black in colour. It was used in the construction of the piers of the western half of Victoria Bridge, the blocks obtained for this purpose weighing from four to seven tons each. At present the quarries are only worked on a very limited scale.-Birdseye and Black River formation, Lower Silurian. 16. Caughnawaga, Q.. Geological Survey. a. A six-inch cube of limestone, dressed. The Caughnawaga quarries are on lands belonging to the Indians, and at one time furnished large quantities of stone for the upper locks of the Lachine canal, and those of the Beauharnois canal. Subsequently they were only now and then worked, and that on a very limited scale; but at present considerable quantities of stone are being obtained from them to be used in the enlargement of the locks on the Lachine canal. The beds are from nine inches to three feet thick.-— Chazy formation. 17. Terrebonne, Q... a. A six-inch cube of limestone, dressed. Worthington & Co., Montreal. At the quarry of Messrs. Worthington & Co., the beds of limestone worked are from eight inches to four, or in places five, feet thick, and are cut by joints from ten to forty feet apart, which greatly facilitate the quarrying. The stone is of excellent quality, and blocks of any required size can be easily obtained. It is carried to Montreal, a distance of sixteen miles, in scows drawn by steam tugs. From 190 to 250 men are employed, and from twenty to thirty horses. The production in 1874 was 5,000 cubic yards, in 1875, 15,000 cubic yards, and it is expected that this year it will be between 20,000 and 30,000 cubic yards. Work in connection with the enlargement of the Lachine canal has recently been contracted for by the proprietors of the quarry which will require about 65,000 cubic yards. Chazy formation. The Trenton formation, which is the next in succession above the Birdseye and Black River, yields excellent building stone at Montreal, at Chevrotière, nearly forty miles above Quebec, and at many intermediate places. The best stone at Montreal is derived from a ten feet band of grey bituminous granular limestone, in beds of from three to eighteen inches thick at the bottom, passing at the top into a black nodular bituminous limestone; which is interstratified with black bituminous shale, in irregular layers of from one to three inches. This grey limestone, which is near the base of the formation, is a mass of comminuted organic remains, which consist largely of the ruins of crinoids and cystideans. Montreal undressed ashlar stone sells for from eighteen to twenty cents. per square foot, dressing costing from fifteen to thirty cents extra per foot. Stones of larger dimensions, sold by cubic measure, are worth forty-five cents per foot, for blocks of fifteen cubic feet or under; blocks containing from fifteen to thirty feet sell for sixty cents per foot.-Trenton formation. In This stone is from the Kirkpatrick quarry, two and a-half miles north-west of Parrsboro'. The bed is about six feet thick, running east and west for half a mile; the stone is in layers of from four inches to two feet, thick and dipping north <69. It is used in Parrsboro', for foundations, bridges, &c.-Lower Carboniferous ? Dolomites. 1. Rapids of the Red River, above Stone Barclay & Morrison, Stony MounFort, Manitoba.... Stain, Manitoba. This beautiful and enduring stone can be obtained in unlimited quantities, the formation from which it is derived being here 150 feet in thickness, and divided into beds varying from a few inches to six feet. The stone possesses the very great advantage of being free from any substance producing stains, and its colour seems rather to improve after weathering. It is especially adapted for heavy masonry, and blocks of any required size can be obtained. The quarries are about half a mile from the harbour.-Niagara formation, Middle Silurian. 4. Guelph, O. a. A six-inch cube of dolomite, dressed. Geological Survey. The Guelph formation which immediately succeeds the Niagara formation in Western Ontario, is largely developed in the neighbourhood of Guelph and Galt. It is made up of pure dolomites, which though generally porous are nevertheless coherent and well suited for building purposes. At Guelph, where the beds are from four inches to two feet in thickness, there are nine quarries in the immediate vicinity of the town, and large quantities of stone are quarried, blocks suitable for dressing selling for about forty cents per cubic foot.-Guelph formation, Middle Silurian. 5. Rockwood, Eramosa, O. a. A six-inch cube of dolomite, dressed. Henry Strange. This specimen is also from the Niagara formation, which is here more than 100 feet thick. The greater part of it consists of thick-bedded, light grey, porous, crystalline dolomite. The beds vary from a few inches to ten feet in thickness; about thirty feet being almost white. Buildings of cut stone obtained from this band are observed to improve in colour after exposure, and at a short distance, have a silvery white appearance. The piers of the long railway viaduct over the valley of the Eramosa, at Rockwood, are built of stone from this formation, and have a very substantial appearance.-Niagara formation, Middle Silurian. 6. Dundas, O...... a. A six-inch cube of dolomite, dressed. E. & C. Farquhar, Toronto. The quarry of Messrs. Farquhar is only a short distance from the Dundas railway station. The beds here are from three inches to three feet thick, the total thickness being about sixty feet. A specimen like that exhibited was found to contain carbonate of lime 51.85, carbonate of magnesia 41.65, carbonate of iron 0.62 and insoluble matter 5,88. The stone is chiefly used for making lime, and for road metal which sells for ten dollars per toise.-Niagara formation, Middle Silurian. 7. Cayuga, O.. a. A six-inch cube of dolomite, dressed. Geological Survey. From Dr. B. Baxter's quarry, lots ten and eleven of "Jones' tract" on the west side of the Grand River. The stone is a greyish-drab dolomite containing remains of Eurypterus remipes. Some of the beds are as much as two feet thick, but those worked are only from three to twelve inches. The stone is used almost entirely for rubble work, from two hundred to four hundred cords being sold annually at from $2.00 to 2.50 per cord. Lower Helderberg formation, Upper Silurian. 8. Grimsby, O............... a. Six-inch cube of dolomite, dressed. Robert L. Gibson. The stone overlies the Clinton and Medina sandstones. At Mr. Gibson's quarry there are six beds exposed, ranging from one to three feet in thickness. It has been used for ordinary building purposes, and in the construction of abutments, &c, for railway bridges. At the quarry it sells for from $3.00 to $3.50 per |