636 Mr. J. Wilson Sivan on Electro-Metallurgy, [May 20, 



current by means of water power derived from a portion of the Fall, 

 of the Khine at Schaffhaiisen. economy. But 



required in a smeUmg ^n^^;^ ^^^H seale. It is simply a 



Here is the Hall ,^PP*^^f .'^^^ °^ 1 ^tick of carbon. As already 



carbon-lined iron <=™«*1«' ^"'l'' *V/t^^^^^^^^^ of carbon tlie anode, 

 mentioned, the crucible IS tbe cathode the sticK .^ ^,^ 



As the process takes time to f ' ^-i*" ' ^^^^^ ^ has been 

 commenced some hours ^'tolc^d e^veral onnces of aluminium. 



if rcrtirrit ^f^^::i:> -- ^-- --'- '- 



carbon to develop heat between the electrodes ^^^^ .^ 



The alumina ^--^f iitdetld Xn sS^ - ^<^''-^' *''« 



'^^iJ:^^^^ of'llal wV the bottom, and the elec- 



-f:,uto;trH=;i; to empty th^^^^^^^^^ 



opportunity of ''^P'^^f ,\"= "frried out this most interesting demon- 

 SraK rSlK'ofl: most important of all the appli- 

 :"of electricity to me^all^^^^^^^^^^ l„g,,,,.. 



Here is the result of oui e^P*^""^"- ^^^^^ jg to illustrate 



tainly, but it is ^"ite^-^tvl^S SrolItaHurgical industry 

 ^M;lSl:ef fr:mTsivti:s Lde at the Boyal Inst.ution. ^^ 



