Physics and Chemistry. 379 
gave 1:0498 grms. PtCl, (NH,Cl)., equivalent to 0°50908 grm. 
no. T ion i i 
e action is not influenced by the presence of alkali- 
Moreover, by the action of the copper-zine couple upon —, 
will 
unite with the oxide produced. ake it general, srg 
they have obtained the result with boric, silicic, phosp an 
testored, by immersing the pumice in a solu } 
of of any other alkali-salt. In this the authors explain aoe. _ 
“ontinuous chlorine process of Deacon, h, a5 1s we , 
whic y f 
‘ : ; : rag- 
Consists in passing a mixture of hydrochloric gas and air over frag 
