. India rubber world. been worked by these machines in North America. Thisbranch of mining buys india rubber goods in hose, , boots, jackets and hats estimated, at retail prices, asamounting to $1,875,000 a year, for all countries. Becausemost of the dredges and hydraulic gold mining plants areremote from sources of supplies, none but the very bestgrades of rubber hose, packing, belting, boots and clothingare bought. India rubber boots, jackets, coats and hats are worn by850,000 miners in North .\merica in what is denominated wetmines—that is, mines in which, but for the pumpin
. India rubber world. been worked by these machines in North America. Thisbranch of mining buys india rubber goods in hose, , boots, jackets and hats estimated, at retail prices, asamounting to $1,875,000 a year, for all countries. Becausemost of the dredges and hydraulic gold mining plants areremote from sources of supplies, none but the very bestgrades of rubber hose, packing, belting, boots and clothingare bought. India rubber boots, jackets, coats and hats are worn by850,000 miners in North .\merica in what is denominated wetmines—that is, mines in which, but for the pumping plantskept going all the time, the work could not be carried on. Inthis countrys wet mines 150,000,000 tons of water are pumpedevery year. Estimating the annual purchases of india rubberclothing and boots and hats for the mining interest of , and upon the basis of known sales made by thestores maintained by a score of mining corporations whosemain purchasing offices are in New York, the total sum is. Gold Dredging in $18,350,000, at retail prices. For mining engineers and man-agers of mines, special designs in boots and jackets and capsand hats of india rubber are made of the very best most popular patterns of india rubber garments wornby miners are almost the same in design as those made forPresident Andrew Jackson by the Roxbury India Rubber Co.,when he visited Boston in 1834 Among the Mexican native miners there is a good demandfor the old style india rubber poncho, which is a blanket 288 THE INDIA RUBBER WORLD [March 1, 1914. with a hole through the middle into which the wearer putshis head. All through the West and Southwest where Mexi-can miners are employed they prefer the india rubber ponchoto the india rubber jacket worn by miners of other of the Cornish, Welsh and Scotch miners em-ployed in North American mines go to their homes in theold country once a year for a few weeks, and when they re-turn they usually br
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