THE VALUATION OF MINES AND OIL PROPERTIES 263 
TABLE 17. LEAD IN THE UNITED STATES (Continued) 
NORMAL PRODUCTION AND PRICE 
(Normals for ten-year periods) 
(1880-1914) 
Production. y 
Ten riods : Normal price 
Ty = Mion, pounds. | (ten-year aver. 
Pounds. Value. : 
1880-1889 2,690,602,000  $119,483,500 269,060,200 $o0.044 
1881-1890 2,782,212,000 122,369,200 278,221,200 0.044 
1882-1891 2,905,150,000 126,663,200 290,515,000 0.044 
1883-1892 2,986,678,000 127,931,000 298,667,800 0.043 
1884-1893 3,026,728,000 127,447,900 302,672,800 0.042 
1885-1894 3,065,596,000 126,853,200 306,559,600 0.041 
1886-1895 3,146,772,000 127,603,800 314,677,200 0.041 
1887-1896 3,261,514,000 126,003,100 326,151,400 0.039 
1888-1897 3,394,114,000 127,703,800 339,411,400 0.038 
1889-1898 3,535,276,000 130,954,500 353,527,600 0.037 
1890-1899 3,643,302,000 136,105,300 364,330,200 0.037 
1891-1900 3,897,690,000 146,998,800 389,769,000 0.038 
1892-1901 4,081,982,000 154,744,800 408,098,200 0.038 
1893-1902 4,274,674,000 162,992,500 427,467,400 0.038 
1894-1903 4,510,710,000 174,572,900 451,071,000 0.039 
1895-1904 4,806,048,000 191,132,600 480,604,800 0.040 
1896-1905 5,060,048,000 208,602,600 506,004,800 0.041 
1897-1906 5:394,354,000 237,992,000 539,435,400 0.044 
1898-1907 5,720,552,000 262,866,800 572,055,200 0.046 
1899-1908 5,898,076,000 272,320,800 589,807,600 0.046 
1900-1909 6,203,714,000 284,621,200 620,371,400 0.046 
IQ0I-IQI0 6,440,488,000 295,310,100 644,048,800 0.046 
1G02—-IQI1 6,710,814,000 308,557,600 671,081,400 0.046 
1903-1912 7,001,604 ,000 323,803,200 700,160,400 0.046 
1904-1913 7,310,464,000 338,689,000 731,046,400 0.046 
1905-1914 7,722,052,000 352,284,938 772,205,200 0.046