STATISTICS OF THE PRODUCTION OP LEAD ORE. '7^5 



Furnace No. 2. Total. 



1,150,000 

 960,000 

 950,000 



■^'''"■- Furnace No. 1. ^.., ™>,„^,„. 



1862 800,000 350,000 



1863 600,000 350,000 



18^ 600,000 350,000 



1865 500,000 350,000 850^000 



1866 500,000 350,000 850,000 



1867 500,000 350,000 850,000 



1868 450,000 350,000 800,000 



1869 450,000 350,000 800,000 



1870 450,000 350,000 800,000 



1871 600,000 350,000 950,000 



1872 600,000 350,000 950,000 



1873 400,000 200,000 600,000 



1874 500,000 500,000 



1875 504,000 504,000 



1876 1,044,000 1,044,000 



Total 8,498,000 4,050,000 12,548,000 



The above table gives in round numbers the product of the Platteville district since 

 1861 ; it is, however, only an approximation made by the smelters themselves, and be- 

 heved to be tolerably correct. Furnace No. 1, owned by Messrs. Straw & Spensley, is a 

 blast furnace having two hearths, and is situated about half a mile south of the village. 



Furnace No. 2, owned by Mr. Coates, is situated near the railroad depot. It is a blast 

 furnace of two hearths, and has not been worked since some time in 1873. Nothing 

 more than a verbal statement of its annual average could be obtained. 



POTOSI DISTRICT. 



There have been, at various times since 1861, four furnaces operating in the vicinity, 

 of which only two are now worked. They are as follows, in kind and condition : 

 Vance's Furnace ceased work in - - 1868 



Gibson & Co. ceased work in - - - 1871 



A. W. Emery's furnace, situated near RookviUe, is a reverbatory, with a capacity of 

 6,000 pounds to every 24 hours. Thomas Hymer & Co.'s furnace, situated near British 

 Hollow, is a blast furnace of one hearth. 



Previous to 1868, all the ore from the Bectown district was smelted at these furnaces, 

 in addition to that which they now smelt, which comprises the mines of Potosi, British 

 and Dutch Hollows, and Rockville. 



A detailed statement of the ore smelted at the several furnaces could not be obtained, 

 but from tlie verbal statements of the several smelters, the following estimate has been 

 prepared which is believed to be nearly correct: 



Fovnds 0/ L^ctd Founds of Lead 



Ym,r. Ore Smelted. Tear. Ore Smelted. 



1862 6,050,000 1870 1,900,000 



1863 5,120,000 1871 2,230,000 



1864 4,500,000 1872 1,400,000 



1865 5,200,000 1873 1,500,000 



1866 4,400,000 1874 750,000 



1867 3,500,000 1875 700,000 



1868 2,600,000 1876 to Oct. 1st. , 650,000 



1869 2,200,000 '■ 



Total from Januaiy 1, 1862 to October 1, 1876 42,700,000 



