Excerpt from Electrochemical Industry, Vol. 2: A Monthly Review of Electrochemistry and Electrometallurgy; From January to December, 1904
The world's production of lead in 1902 is given as tons, and has, therefore, increased by tons, while in 1901, it only increased about ton... s. This increase in the production is all the more remarkable, as four mines in the broken-hill district in Australia had to stop working in con sequence of the low price of the metal, which caused a falling off of the production to the extent of tons of lead.
According to calculations which comprise the produce of the smelting works, the world's production of copper amounted to tons in 1902 (while H. R. Merton Co., of London, give it as tons). This is an increase of about 3 per cent over the preceding year, which is entirely due to the United States of America, where the production from home material has risen from to tons.
The world's production of spelter, which already showed the considerable increase of tons 6 per cent in 1901, has again increased, in 1902. By further tons about per cent, thus reaching the figure of tons. The increase is chie¿y due to the United States, Great Britain and Upper Silesia (germany).
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