The imports of mineral products into the United States may be divided into metals and non-metals, the imports of the former amounting in 1911 to $105,629,981 and of the latter to $124,146,745, a total of $229,776,726 worth of mineral products imported into the United States in 1911. The imports of metals during the year were as follows: Aluminum salts, $56,833; antimony (metal, regulus and ore) $531,011; antimony salts, $54,426; bauxite, $164,301; bismuth, $311,771; cadmium, $3,870; chromic iron ore, $407,958; chromium salts, $3,508; cobalt (oxide, ore, and zaffer) $48,104; copper, in ore, matte, ingots, bars, manufactures, etc., $38,445,939; iron ore, $5,402,636; lead, in ore, base bullion, pigs, sheets, manufactures, etc., $631,654; manganese ore, $1,186,791; nickel, in ore, matte, oxide, etc., $4,050,030; platinum, $4,866,207; quicksilver, $251,386; tin, $43,346,394; tungsten ore, $85,887; type metal, $310,658; uranium salts and oxide, $14,106; zinc, in ore, sheets, dust, manufactures, etc., $408,273; iridium, osmium, palladium, and rhodium, $292,399. The imports of non-metals for the same period may be divided in similar fashion into: Alizarin, $996,794; aniline salts, $410,193; arsenic sulphides, etc., $247,323; asbestos, $1,703,639; asphalt, $789,236; barytes, $58,726; barium compounds, $398,213; borax, $23,628; burrstones and millstones, $36,028; cement, hydraulic, $242,722; clay, $235,254; clay products, brick and tile, etc., $166,133; pottery, etc., $10,638,616; coal, anthracite, $12,550 and bituminous, $3,604,797; coal-tar products, $8,235,891; cobalt, $48,104; coke, $254,455; corundum and emery, $336,644; cryolite, $47,093; fertilizers, crude (guano, kainite, manure salts, phosphates, etc)., $10,387,588, potassium chloride, $7,651,693, potassium sulphate, $2,240,631 and sodium nitrate, $16,814,268; flint and flint pebbles, $236,158; fluorspar, $80,592; fuller's earth, $143,594; gems and precious stones, $40,820,436; granite, $146,468; graphite, $1,495,729;

grindstones, $123,727; gypsum, $450,806; hones, oilstones, whetstones, $54,379; infusorial earth and rotten stone, $35,665; kaolin or china clay $1,461,068; lead paintslitharge, orange mineral, red lead, white lead, $118,395; lime, $55,255; magnesite and magnesia, $1,224,987; marble and stone, $1,409,930; mica, $502,163; mineral waters, $1,037,485; monazite and thorium oxide, $60,542; ocher, $110,932; peat, $39,372; petroleum, $2,410,884; ozokerite and paraffin, $792,818; pumice, $118,977; pyrite, $3,788,803; shale, $375,030; sand and gravel, $147,268; sienna and umber, $59,334; slate, $8,367; sulphur, $552,836; talc, $88,050; thorium nitrate, $238,841; venetian red, $20,169; zinc oxide, $357,466.

The exports of mineral products from the United States again may be divided into metals and non-metals, the exports of the former amounting to $123,322,446 and of the latter to $190,807,641, or a total of $314,130,087 worth of mineral products exported from the United States during the year 1911. The exports of metals for the year were as follows: Aluminum and manufactures, etc., $1,158,603; copper, in ore, matte, ingots, bars manufactures, etc., $105,679,926; iron ore, $2,653,448; pig iron (including scrap) $2,916,601; lead, in ore, base bullion, pigs, sheets, manufactures, etc., $680,419; nickel, in ore, matte, oxide, etc., $8,283,777; quicksilver, $13,995; zinc, in ore, pigs, sheets, dust, manufactures, $1,935,677. The exports of nonmetallic products were as follows: Asphalt, $598,930; cement, hydraulic, $4,632,215; clay products, brick and tile, etc., $2,264,354, pottery, etc., $1,401,366; coal, anthracite, $18,093,285, bituminous, $34,499,989; coke, $3,215,990; fertilizers, phosphates, crude, $9,235,388; lime, $153,212; marble and stone, $1,810,182; petroleum, $105,922,848; paraffin and paraffin wax, $7,047,856; salt, $335,285; sulphur, $545,420, zinc oxide, $1,051,311.

In

During the year 1880 there were 1,741,500 fine ounces of gold produced with a value of $36,000,000 and 30,318,700 fine ounces of silver, having a value of $34,717,000. 1890 the 1,588,877 ounces of gold were valued at $32,845,000 and the 54,516,300 fine ounces of silver $57,242,000. For the year 1900 the 3,829,897 ounces of fine gold produced had a value of $79,171,000 and the 57,647,000 ounces of silver a value of $35,741,000. During the year 1911 there were 4,687,053 fine ounces of gold produced with a total value of $96,890,000 and 60,399,400 fine ounces of silver with a value of $32,615,700.

PLATINUM.

In 1911 the production of crude platinum was 628 troy ounces, valued at $18,137 as compared with 390 troy ounces in 1910 valued at $9,507. This entire output was recovered from placer mines in California and Oregon. The total quantity of refined platinum produced in domestic refineries in 1911 was about 29,140 fine ounces, of which only about 940 ounces, valued at $40,890, were derived from domestic sources of various kinds. total imports for the year amounted to $4,866,207. The total world's production of platinum in 1911 amounted to 314,323 troy

ounces.

The

LEAD.

The production of lead in 1911 was 406,148 short tons, valued at $36,553,320, as compared with 372,227 tons valued at $32,755,976 in 1910. The imports of lead were valued at $631,654 in 1911 against $755,092 in 1910. The exports were valued at 680,419 in 1911 against $614,158 in 1910. The imports of type metal were valued at $310,658 as against $485,493 in 1910. The United States ranks first in the production of lead with a production of 406,148 short tons; Spain ranks second with 189,155 tons; Germany third with 177,801 tons; Mexico fourth with 132,276 tons and Australia fifth with 109,789 tons.

QUICKSILVER.

The production of quicksilver in 1912 amounted to 25,064 flasks of 75 pounds each, valued at $1,053,941. California reported 20,524 flasks for the year; Nevada and Texas combined reported 4,540 flasks. The imports were valued at $39,920 in 1912 and the exports at $13,360.

IRON, PIG IRON AND STEEL.

The quantity of iron ore mined in the United States in 1912 amounted to 55,150,147 long tons, as compared with 43,876,552 long tons in 1911, an increase of 11,273,595 long tons, or 25.69 per cent. The quantity of iron ore marketed in 1912 amounted to 57,017,614 long tons, valued at $107,050,153, as compared with 41,092,447 long tons in 1911, valued at $86,716,575. This total production of 55,150,147 long tons consisted of the following ores: Hematite, 51,345,782 long tons; Brown ore, 1,614,486 long tons; Magnetite, 2,179,533 long tons; carbonate, 10,346 long tons. The rank of the principal iron-ore producing states with regard to both quantity and percentage of total production follows:

Minnesota, 34,431,768 long tons, or 62.43%; Michigan, 11,191,430 long tons, 20.29%; Alabama, 4,563,603 long tons, 8.28%; New York, 1,216,672 long tons, 2.21%; Wisconsin, 860,600 long tons, 1.56%; all other states, 2,887,074 long tons, or 5.23%. The principal iron-ore producing region is the Lake Superior region, which alone in 1912 produced 46,368,878 long tons. There are six ranges included in the Lake Superior region, their production for the year 1912 being as follows: Marquette range (Mich.), 3,545,012 long tons; Menominee (Mich. and Wis.), 4,465,466 long tons; Gogebic (Mich. and Wis.), 3,926,632 long tons; Vermillion (Minn.), 1,457,273 long tons; Mesabi (Minn.), 32,604,756 long tons; Cuyuna (Minn.), 369,739 long tons.

The apparent consumption of iron-ore in the United States for intervals of ten years is as follows: 1890, 16,302,025 long tons; 1900, 26,722,583 long tons; 1910, 56,161,091 long tons; 1912, 58,031,118 long tons.

The imports of iron-ore in 1912 were valued at $6,499,690, as compared with $5,412,636 in 1911 and $7,832,225 in 1910. The exports in 1912 were valued at $3,537,289, as compared with $2,653,448 in 1911 and $2,474,165 in 1910.

The production of pig iron in the United States in 1912 amounted to 29,726,937 long tons. The marketed production amounted to 30,180,969 long tons, valued at the furnaces at $420,563,388, as compared with 23,257,288 long tons in 1911, valued at $327,334,624. The whole number of furnaces in blast on December 31, 1912 was 313, against 231 in 1911; on that date 153 furnaces were idle or being rebuilt.

The production of all kinds of steel ingots and castings in 1912 amounted to 31,251,303 long tons and was made by the following processes: Bessemer, 10,327,901 long tons; Open hearth, 20,780,723; crucible and all other, 142,679 long tons.

Exports,

D. 8. Geological Survey for 1912 on same basis. Nearly 8 tons of iron (metal) produced in 1910.

The production of copper in 1911 was 1,097,232,749 pounds fine, valued at $137,154,092 as against 1,080,159,509 pounds, valued at $137,180,257, in 1910. The increase by decades in the production of copper is shown as follows: 1845, 224,000 pounds; 1855, 6,720,000 pounds; 1865, 19,040,000 pounds; 1875, 40,320,000 pounds; 1885, 165,875,766; 1895, 380,613,404 pounds; 1905, 888,784,267 pounds; 1911, 1,097,232,749 pounds. Considerable copper was reported by the mines, from ores mined primarily for other metals, and in all 263,647.58 fine ounces of gold and 16,759,638 fine ounces of silver were obtained from ores in which copper was the principal constituent.

Forms in which copper was cast in 1911 included wire bars, 731,029,349 pounds, or 50%; ingots and ingot bars, 409,786,682 pounds, or 29%; cakes, 143,716,125 pounds, or 10%; cathodes, 135,499,770 pounds, or 9%; other forms, 25,774,328 pounds, or 2%. It will be noted that the total, 1,445,806,254 pounds does not equal the refinery output of copper for 1911.

The imports in 1911 were valued at $38,445,939 as against $40,849,239 in 1910; $38,762,951, in 1909 and $29,664,129 in 1908. The exports in 1911 were valued at $105,679,926, as against $96,554,432 in 1910; $93,919,956, in 1908 and $91,809,675 in 1908.

The smelter production of copper in the world was 1,958,201,285 pounds in 1911, as compared with 1,903,297,003 pounds in 1910. In 1911 the smelter output of the United States was 56 per cent of the world's production, as compared with 56.76 per cent in 1910, 58 per cent in 1909 and 56.5 per cent in 1908. The following shows the principal