16 



more than 1500 feet, and the increased production of the 

 last few years is chiefly owing to deep diggings. To show 

 this increase, the following from Rossiter W. Raymond' 

 United States Commissioner of Mining Statistics, is given, 

 published last May in the Engineering and Mining 

 Journal : 



The total product of silver in the United Stat'-:? siii:e 

 1848, is estimated as follows : 



From 1848 to 1858, 1866 10,000,OOo'' 



inclusive, $50,- 1867 13,500,000 



000 per annum. . 8550,000 1868 12,000,000 



1859 100,000 1869 13,000,000 



I860 150,000 1870 16,000,000 



1861 2,000,000 1871 22,000,000 



1862 4,500,000 1872 25,750,000 



1863 8,500,000 1873 86,500,000 



1864 11,000,000 



1865 11,250,000 Total 8186,800,000 



The same authority estimates the sum of the gold pro- 

 duct of the United States, from 1847 to January 1 , 1874, 

 to be 81,240,750,000. 



For the past two years, J. J. Valentine, General Super- 

 intendent of Wells, Fargo & Co. , publishes the following : 



STATEME]SrT OF PRODUCT OF PRECIOUS METALS WEST OF 

 THE MISSOURI RIVEK, FOR 1875. 



States and Territories. 1875. 1874. 



California 817,753,151 820,300,531 



Nevada 40,478,369 35,422,228 



Oregon 1,165,046 609.070 



Washington 81,982 155,535 



Idaho : . . 1,554,902 1,880,004 



Montana 3,573,609 3,439,498 



Utah 5,687,494 5,911,278 



Arizona 109,093. 26.066 



Colorado 6,299,817 4,191^405 



Mexico 2,408.671 798,878^ 



British Columbia 1,776,953 1,636,557 



Total 880,889,037 $74,401,055 



