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Show iir.v of i:c water is maintained. This flow of ice water is used to keep the temperature of the mix below eighty-five eighty-five degrees, as above that point it would explode, and a hole in the ground would mark where the factory had been. The nitre-glycerine ia stored in large earthenware tanks, which are usually sunk in the ground to guard igainst blows or severe concussion. The other ingredients for making dynamite are: K Urate of soda, which is found only in Chili, carbonate of magnesia and wood pulp. Dynamite i9 put in paper shells usually one and a quarter Inches in diameter and eight inches in length, and weighs about one-half pound to each shell or cartridge. It has largely taken the place of black powder for blasting, as it is many hundreds of times stronger and consequently more economical. It Is used chiefly In mining all kinds of ores, coal and rock and submarine blasting and railroad building. build-ing. Without its aid many railroads, especially those crossing the Rocky mountains, could not have been constructed; con-structed; without it Hell Gate in New York harbor could not have been destroyed, de-stroyed, and without it the miner, at prices now paid for mining ores, could not earn his bread. Dynamite will not explode from any ordinary fall or jar; it will burn without with-out explosion and freezes at forty-two degrees, ten degrees above ordinary freezing point. The bomb of the anarchist an-archist is made of metal or glass and filled with pure nitro-glycerine arranged ar-ranged so as to explode by severe contact con-tact with any hard object. These bombs are, of course, never made by a reputable dynamite factory. Five or six millions of dollars are invested in-vested in the manufacture of dynamite in the United States, and its use is constantly con-stantly on the increase. The fumes of nitro-glycerine produce intense head-a head-a -h:. which can be cured by taking a very f inal! diwe of it internally. CONCERNING DYNAMITE. Several Million Dollar. . nv.ted In In ' Manufacture in the rutted Statei. . Yery.few people have a correct idea of what dynamite is, of what it is made, and the uses to which it is put. To the French belongs the honor of its discovery discov-ery and fts practical use. Nitro-glycerine is the force of all high explosives. Dynamite is the name most usually given to these explosives, though other names are sometimes used. Dynamite, says the Detroit Free Press, is simply nitro-glycerine mixed with various ingredients. Nitro-glycerine is made by mixing sulphuric and pitric acid with sweet glycerine, the same that is used by the ladies to prevent pre-vent chapped hands. ixing the acids and glycerine is where the great danger dan-ger lies in the making of nitro-glycerine. The mixing.tank, or agitator, as it is called by dynamite makers, is a large steel tank, filled inside with many coils of lead pipe, through which, while j the mixing is in progress, a constant ' |