The World's Columbian exposition, Chicago, 1893 . do minerals. NorthCarolina Is another gold and gem producer, and consequently herspace luxuriates in jewels and a thousand and one rare and deco^rative minerals. West Virginia, Kansas, Indiana, Oregon, Virginia,New Jersey, Minnesota, Washington, Wyoming, Tennessee andLouisiana also have representative displays on the ground floor. MINES. 257 A trophy in copper, copper alloy, nickel and steel furnishes avariegated effect in colors at the main east entrance. Hard by arethe heavy exhibits of the great iron ani steel firms, one showingthe first ste
The World's Columbian exposition, Chicago, 1893 . do minerals. NorthCarolina Is another gold and gem producer, and consequently herspace luxuriates in jewels and a thousand and one rare and deco^rative minerals. West Virginia, Kansas, Indiana, Oregon, Virginia,New Jersey, Minnesota, Washington, Wyoming, Tennessee andLouisiana also have representative displays on the ground floor. MINES. 257 A trophy in copper, copper alloy, nickel and steel furnishes avariegated effect in colors at the main east entrance. Hard by arethe heavy exhibits of the great iron ani steel firms, one showingthe first steel converter used by th^ inventor ci the so-called Besse-mer process—Kelly, and an object of great interest from a his-torical and evolutionary standpoint. In size, as compared with theenormous converter, it is as the baby to the Jumbo. Thewhiz and the thud of drills, hoisting engines, concentrators, etc.,attract our attention, and rapidly we pass through the aisles be-tween the rows of giant mechanisms that can drill through and cut. DOUBI^B REKI< HOISTING ENGINE)—UNITED STATES SECTION. out the most solid quartz, lift it by the tons to the surface, crush itto powder, and by dozens of ingenious mechanical and chemicalprocesses separate the valuable metal ingredients. Here is a hugefurnace for the smelting and refining of bullion ; over there power-ful pumps and fans for ventilating and draining mines, while a17 258 MINKS. tunnel running beneath the building at the south end is an actualrepresentation of a mine gallery, and shows the method of timber-ing, lighting and underground haulage. This tunnel, by means of awire rope tramway, connects with the ore yard, from whence the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectworldscolumbianexpos
