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30 feet amount appearance average band belt body boulders carried cent clay Company concession conglomerate considerable consists containing continued copper corundum crosses deep deposits depth described dikes distance drift east eight employed examined extends fall feet five foot four gneiss gold granite green ground half hill hoisting Huronian inches iron island lake land latter length less limestone lower Marie mass material miles mill mineral Mining Mountain mouth nickel occurs Ontario operations outcrops passed places portage present probably quartz rapids reached region river road rock runs samples schist seen seven shaft shore side stope stream strike sunk Superior surface syenite timber tion township vein wall wide width
Página 52 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Página 96 - C. by hydrogen, was treated with pure carbon-monoxide in a glass tube at varying temperatures. In order to keep the poisonous carbon-monoxide out of the atmosphere of the laboratory, the gas escaping from the apparatus was ignited. They found to their surprise that while the tube containing the nickel was cooling, the flame of the escaping gas became luminous and increased in luminosity as the temperature sank below 100° C. Metallic spots were, moreover, deposited on a cold plate of porcelain held...
Página 96 - It is unnecessary to give a history of the metallurgy of nickel, but it may be well to state that Chronstet isolated the metal in the year 1751, and that Bergman confirmed his discovery in 1774. The methods hitherto employed for extracting the metal from its ores are very complicated ; they have involved concentrating the nickel either as a sulphide (matte or regulus), or as arsenide (speise) followed by either " dry " or " wet
Página 95 - ... have hitherto guided it. This process depends on the remarkable property possessed by nickel of forming a volatile compound with carbonic oxide, or, as it is called in modern chemical nomenclature, carbon-monoxide. When this gaseous compound is heated to 180
Página 8 - NE } of NE } of sec. 30. tp. 13, R. 5, W. 4th. This well has a diameter of 10 inch casing, and a depth of 937 feet. It was completed August 30, after striking a good flow of gas, with a pressure of 560 pounds at the end of twentyfour hours. A small flow of gas was struck at 550 feet, and continued down to 660 feet.
Página 213 - This state lias furnished nearly all the corundum of commerce for the United States, but the statistics of the mines and works have never been published. There has been much waste of effort in mining for the gem varieties, encouraged by occasional discoveries, but chiefly by the attractive colors in which the corundum is found. The whole process of mining and milling has had to be learned...
Página 216 - ... per acre. Instead of allowing speculators to take up and hold lands with a view to sell out their interests to miners and capitalists at a large profit, it is proposed that the advantage of acquiring lands upon the lowest terms shall go to the miner and manufacturer direct ; and in the case of parties who will undertake to conduct mining and treating operations on the largest and completest scale, and who can furnish satisfactory assurance that they possess the requisite capital for the proposed...
Página 213 - Perth, who at that time enjoyed some local reputation as a geologist (the mineral wilsonite is named after him), and who is still remembered as a man who paid considerable attention to the natural history of his district. The first place visited by them was the fourth lot on the eighth range of the township of Burgess, upon which Dr. "Wilson, a short time before, had discovered a body of apatite. Near by, on the second lot of the ninth range, was a deposit of copper pyrites in crystalline limestone,...
Página 213 - China, there are numerous occurrences of corundum in crystalline schists; and in almost every case the mineral is of the gem variety. As far as known to the writer, there are no deposits in Asia now exploited for use in the arts, saving the emery of Asia Minor. In the United States corundum is confined almost wholly to the region of the Appalachian Mountains, along a belt that extends from New Jersey to Alabama.
Página 212 - As to the limestone itself, whether occuring as disseminaied crystals through the gneiss or as great interfoliated masses, it is the opinion of Professor Judd that it has been neither organic nor due to direct chemical precipitation in its origin, but has resulted from a metamorphism of the lime-bearing felspars ; while during the process of change from basic felspar to scapolite. and from scapolite to hydrated alluminium silicates, and from these to alluminium oxide, " the slowly liberated oxide...