g34 Mr. J. Wilson Swan [May 20, 



I have found that the limit in the other direction is not reached by 

 ; rate of deposit oue thousand times faster. I have produced, and 



1 hone to be^We '" V"^""" ^^^"'^ y*""' " ^^^^^ ^^ ^ ''^ t nf 



*''*''This cell contains a solution of copper nitrate with a small pro- 

 portion of ammonium chloride. The plate on ™lfil -^„f -^J^ 



... tS .hoi 1 Jo ... in2»__..„3SJ^^^^^^^^^ 



£9!iTS •.Tfi.rpSi-oStr.:^:'. 



When ueyuie p ^ expectations were entertamed of 



aluminium chloride, exa „bi<h. t n,„t„iiurBV. It was very 



the great part it was about *« jl^^ '^ if^X'^Ses that its too 

 soon found that aluminium had ."°* f *f ./'^'^^ ^ at many 

 ganguine friends had claimed for '»' l""' *"> 'y'^ of cheapuess, 

 most valuable properties, t°'^V^'^'".n„ld be found for it. Some 

 a number of useful applications ^""l'', •^4^*"^° V^cies made of 

 of these -\-|f-t1it"brthrMei RXtiL lyn^ and 



aluminium, kindly lent by tne ■^^^^'"'^ knowledge of its 



metallurgical research is -Pf yj^^^t^m.nt triteef castings, 

 importance m connection witli t^e i™l'™ ,, - extraordinary 



£Sh. ^ Tttst o1 t^ Si^titr^d^X B^eville-s proces^s 



