This section is from the book "Scientific American Reference Book. A Manual for the Office, Household and Shop", by Albert A. Hopkins, A. Russell Bond. Also available from Amazon: Scientific American Reference Book.
Twenty-two States made pig-iron in 1902, as against 21 in 1899 and 1900, and 20 in 1901. The total production of pig-iron in 1902 was 17,821,307 long tons, against 15,-878,354 tons in 1901, 13,789,242 tons in 1900, 13,620,703 tons in 1899, 11,-773,934 tons in 1898, and 9,652,680 tons in 1897. The production of 1902 shows an increase of 1,942,953 long tons, or 12.2 per cent, in quantity over the production of 1901, and in increase in value from $242,174,000 to $372,775,000, amounting to $130,601,-000, or about 54 per cent. The average price per long ton of pig-iron increased from $15.25 in 1901 to $20.90 in 1902. The average prices per long ton in recent years have been as follows: 1900, $18.85; 1899, $18: 1897, $9.85; 1896, $10.47; 1895, $11.14; 1894, $9.76.
The production of iron ores in 1902 amounted to 35,554,135 long tons, as compared with 28,887,479 long tons, in 1901, a gain of 6,666,-656 long tons, or 23 per cent. The value at the mines of the ore mined in 1902 was $65,412,950. As in the four previous years, the production of iron ores in 1902 in the United States has never been equaled by any other country. There were mined also in 1902, 13.275 long tons of manganiferous iron ore, valued at $52,371, which were used in the production of spiegeleisen.
The production of gold in 1902, as reported by the Bureau of the Mint, was 3,870,000 fine ounces, valued at $80,000,000.
The production of silver in 1902, as reported by the Bureau of the Mint, was 55,500,000 fine ounces; coining value, $71,757,575; commercial value, $29,415,000.
The production of manganese ores increased from 11.-995 long tons, valued at $116,722, in 1901, to 16,477 long tons, valued at $177,911, in 1902, an increase in quantity of 4,472 tons and in value of $61,189. The average price per ton was $10.74 in 1902. as compared with $9.73 in 1901 and with $8.52 in 1900.
The copper mining industry suffered during 1.902 from the reaction which followed the unsuccessful attempt in 1901 to maintain the metal at an artificial level. The production.
however, increased from 602,072,519 pounds in 1901 to 659,508,614 pounds in 1902, an increase of 57,436,125 pounds, or about 9 per cent, in quantity, but decreased in value from $87,-300,575 in 1901 to $76,568,954 in 1902, a decrease of $10,731,561, or about 12 per cent. Unless unforeseen events cause widespread or long stoppage at the mines, the production of copper in the United States will be considerably larger in 1903 than it has ever been.
The production of lead has been almost exactly the same for the last three years, viz., 270,000 short tons in 1902, 270,700 short tons in 1901 and 270,824 short tons in 1900. The value of the production in 1902 was $22,140,000, as compared with $23,280,200 in 1901, and with $23,-564,688 in 1900.
The production of zinc in 1902 showed a continued increase in quantity as compared with 1901 and 1900, the production being 156,927 short tons in 1902, as compared with 140,822 short tons in 1901 and with 123,886 short tons in 1900. The value of the zinc production in 1902 was $14,625,596, as compared with $11,-265,760 in 1901 and with $10,654,196 in 1900.
The production of aluminum during 1902 was 7,300,000 pounds, valued at $2,284,590, as compared with 7,150,000 pounds, valued at $2,238,000 in 1901, and with 7,150,000 pounds, valued at $1,920,000 in 1900.
The production of platinum from domestic ores in the United States during 1902 was 94 ounces, valued at $1,814, as compared with 1,408 ounces, valued at $27,526 in 1901.
The production of quicksilver during 1902 amounted to 34,291 flasks of 76 1/2 pounds net, as compared with 29,727 flasks in 1901 and with 28,317 flasks in 1900. The value of the quicksilver produced in 1902 was $1,467,848. as compared with $1,382,365 in 1901 and with $1,302,586 in 1900. California reported 28,972 flasks in 1902, as compared with 26,720 flasks in 1901: and Texas reported 5,319 flasks in 1902, as against 2.932 flasks in 1901. In addition, the census reports 10.427 tons of crude or cinnabar, valued at $67,242. mined in California, and 1.300 tons of cinnabar, valued at $1,500, mined in Texas in 1902, but not roasted or treated, a total of 11,-727 short tons of cinnabar, valued at $82,242. The total production of both quicksilver and cinnabar in 1902 was therefore valued at $1,550,090.
The production of lithium minerals in 1902 was 1,245 short tons, valued at $25,750 at the railroad, a decrease of 505 tons in amount and of $17.-450 in value as compared with the production of 1901, which was 1,750 tons, valued at $43,200. As far as can be ascertained the greater part of the lithium minerals mined during 1902 was not shipped. Although the price of these minerals was lower in 1902 than in 1901 for the same grade of mineral, there was apparently no increase in the home demand. There is, however, an increase in the demand for these minerals from foreign chemical manufacturers.
The production of metallic nickel in 1902 was 5,748 pounds, valued at $2,701, as compared with 6,700 pounds, valued at $3,551 in 1901.
No antimony was obtained from domestic ores during 1902. The antimony obtained from the smelting of foreign imported ores amounted to G57 short tons, valued at $129,126, and the antimony obtained from hard lead produced from foreign and domestic lead ores was 2,904 short tons, valued at $505,240, a total production for 1902 of 3,5G1 short tons, valued at $634,506, as compared with 2.639 short tons, valued at $539,902, in 1901. The estimated total amount of antimony available for consumption in 1902 was 0,255 short tons, including 2,694 short tons of imported antimony regulus, as compared with 4,475 short tons, including 1,837 short tons of imported antimony regulus in 1901, and with 0,053 short tons, including 1,827 short tons of imported antimony regulus in 1900.
No bismuth ores were produced in the United States during 1902. The marketed output in 1901 was 318.0 short tons. The ore contained gold and silver, for which the producers were paid. As nearly as can be ascertained, the value of the output in 1901 was $80 per ton, not including charges for transportation or treatment.
The production of molybdenum in 1902 was approximately the same as that of 1901, but none of the product was shipped in 1902. The value of these molybdenum ores is very erratic, the highest price hitherto quoted being $1,500 per ton, and the lowest $100.
The production of tungsten during 1902 was 184 short tons of crude ore, of which no more than a few tons were sold. This does not represent the amount of tungsten ore sold in 1902, for 70 tons of concentrated ore, mined in 1901, were sold in 1902. In 1901 the production amounted to 179 tons of concentrated ore, valued at $27,720. The larger part of the production of 1902 was from Colorado.
There was a marked increase in the production of uranium and vanadium minerals in 1902, which, as reported to the Survey, amounted to 3,810 short tons, valued at $48,125, or $12.02 per ton. This, of course, represents the crude ore. In 1901 the production was 375 tons of crude ore.