53 



According to The Mineral Industry During 1917, the world's 

 production of bauxite for 1913 to 1917 was as follows: — 



France 



United States 

 Great Britain 



Italy 



India 



1913 



Long tons 



304,314 



210,241 



8,282 



6,841 



1,184 



1914 



Long tons 



(a) 



219,318 



8,286 



3,844 



514 



1915 



Long tons 



(a) 



297,041 



11,723 



5,807 



876 



1916 



Long tons 



(a) 



425 , 100 



10,329 



8,739 



750 



1917 



Long tons 



(a) 



568,690 

 14,724 



(a) 

 (a) 



(a) Statistics not available. 



. Some notes on the manufacture of aluminium, as 



carried out by the British Aluminium Company in 



1911, are of interest. The allocation of cost* is given as follows: 



Per lb. 



Energy 1 ■ 12 c. 



Carbon 1-45 



Alumina 6-25 



General expenses and profits 6-25 



15-07 



The following table, which only claims to be approximate, and 

 which refers to the conditions prevailing before the war, is another 

 estimate as to the cost of production. 



Francs 

 per kilo- 

 gramme 



Cents 

 per lb. 



35 k.w.h. at 0-7 centimes. . 

 2 kg. of aluminate at 0-25. , 

 • 8 kg. electrodes at ■ 35 . . 

 0-12 kg. cryolite at 0-40.. . 

 05 kg. fluoride at 0-50... 

 0-25 working hours at 0-60 

 Sundries 



0-25 

 0-50 

 0-28 

 05 

 003 

 015 

 15 



l-35t 



•19 



•38 

 •45 

 •44 

 •26 

 •31 

 •31 



1234 



* See p. 59 for New York prices of aluminium, 1913-17. 



t Engineering, August 30, 1918. The total as given in the original article is 

 as above, but the items of cost, as stated, total 1 .41 francs, which is equivalent to 

 12. 89 cents. 



