Value of imports for consumption and of exports of mineral products in the calendar years 1907, 1908, and 1909—Continued. 23, 714 6, 772 375,932 white lead. 115, 620 88,579 101, 693 13, 114 Lime.. 86,304 28,952 75,556 Magnesite and magnesia.. 46,604 918, 946 775, 642 1,041, 418 265, 776 Marble and stone... 1,529, 769 1,289, 413 1,472, 607 183, 194 32, 107 104, 585 46,881 286, 252 186, 182 45, 414 a Including soda ash valued at $66,521 in 1907, at $38,367 in 1908, and at $50,919 in 1909. ||++++++++++ +1++++++ +++++++|++|+++| | |++++++1+++ 70, 734 35,588 1,813 341.200 983, 498 2,254, 203 33,903 195, 759 1,183 6, 863 28, 660 10,586 645 1,907, 788 259 Value of imports for consumption and of exports of mineral products in the calendar years 1907, 1908, and 1909—Continued." a Asphalt and manufactures of, fiscal year. Not including bunker coal laden as fuel in vessels in the foreign trade, which aggregated in value $18,523,594 in 1907, $19,915,001 in 1908, and $19,071,314 in 1909. e Not reported separately by Bureau of Statistics. If gold and silver are included, for the sake of rounding out the metals mentioned in this report, the metallic imports increased in 1909 about 12.66 per cent, and the metallic exports increased 26.09 per cent; the total imports decreased about 26.28 per cent, and the total exports increased 14.21 per cent. The movements of gold and silver, however, are rather financial than commercial; nevertheless the following table is added to show the results mentioned above: Value of imports for consumption and of exports of mineral products in the calendar years 1907, 1908, and 1909, including gold and silver. Value of imports for consumption and of exports of mineral products in the calendar years 1907, 1908, and 1909, including gold and silver-Continued. Including, in 1907, foreign bullion and coin valued at $1.890,256; in 1908, foreign ore valued at $5,842, and bullion and coin valued at $1,481,998; in 1909, foreign bullion and coin valued at $2,735,126. Including, in 1907, foreign ore valued at $6,213 and bullion and coin valued at $11,469,281; in 1908, foreign bullion and coin valued at $1,141,900; in 1909, foreign ore valued at $62,480 and bullion and coin valued at $1,722,596. METALS AND METALLIC ORES IN 1908 AND 1909. By WALDEMAR LINDGREN. The following tables have been prepared in order to show at a glance the quantities of metals and ores produced in the United States and their relative importance. In the separate reports the figures are given according to the units used in trade in this country, and these units are unfortunately of five kinds: Long tons, short tons, pounds, fine ounces, and "flasks." In the present synopsis all have been reduced to short tons. There is another source of confusion, due to the great development of the smelting and refining industries in the United States during the last decade. Large quantities of ore, matte, and unrefined bullion are imported, and it becomes necessary to differentiate between the metals derived from this imported material and those derived from ores taken from domestic mines. Finally, the several stages through which a metal passes from the mining of the ore to the output of the refined product may give rise to misunderstanding. The copper production, for instance, may be measured by the quantity of blister copper, which admits of accurate distribution among States and districts, but does not give the final marketed product, or by the quantity of refined copper, in which the original output of the several mining districts can not easily be traced. Similarly lead may be stated as lead bullion or as refined lead. There is more or less discrepancy between these statements, aside from the difference due to loss in metallurgical operations, for they represent differing periods of time, during which the activity of smelters and of refineries may not have been equal. In this summary all metals are measured as refined, and the production from domestic and foreign mines is indicated in separate columns, wherever such a division is possible. 97547°-M B 1909, PT 1- -5 65 |