248 



MINERAL STATISTICS 



Production of the Dutch Tin Mines since 1855. 



This is so important in relation to the British Tin trade, that the preservation of the details is 



desirable. 



1,000 Banca slabs weigh about 32 tons ; the average weight of 1,000 slabs Straits tin being from 

 05 to 40 tons. The weight of the Billiton slabs is the same as the Banca. 



1857 

 1858 

 1859 

 1860 

 1861 

 1862 

 1863 

 1864 

 1865 

 1866 



1867 



1868 

 



1869 

 1870 

 1871 

 1872 

 1873 



sold at 82 Flos, per 50 Kilog. 2 



The Quantities of Tin sold in Holland and the Prices realised since 1857. 



Ter Ton 

 t. 



. = 140 10 

 . = 116 

 . = 141 

 . = 136 

 . = 118 5 

 . = US 10 

 . = 130 

 . = 106 

 . = 95 10 

 . = 87 10 

 . = 81 10 

 . = 94 10 

 . = - 95 



Slabs 



190,559 . 



190,842 . 



139,128 . 



151,513 . 



149,188 . 



155,193 . . . 



119,092 . 



146,921 . 



167,800 . 



111,800 March sale 



109,300 Sept. sale 

 69,400 March sale 

 71,000 Sept. sale 

 51,100 March sale 

 90,300 Sept. sale 

 10,500 Nov. sale 

 49,500 March sale 

 61,300 Sept. sale 

 76,800 March sale 

 80,000 Sept. sale 

 80,791 March' sale 

 83,300 Sept. sale 

 52,800 March sale 

 46,500 Sept. sale 

 75,200 March sale 

 30,000 Sept, sale 

 30,000 Nov. sale 



69 



67| 



76 



Clf 



56 



49| 



46 



54 



54J 



55 



82 



74 



72* 



75i 



75 



783 



96J 



02 



85 



75 



67* 



= 94 10 



= 95 10 



= 142 



= 128 10 



= 126 10 



= 130 



= 129 



= 136 



= 165 



= 156 



= 145 



= 128 



= 115 



60J kilogrammes are equal to an English cwt., or 1,015 kilogrammes ore equal to an English 

 statute ton. 



