222 M. C. Lea on a new test for Hyposulphites. 
nec ea 
the large beds of anhydrous hematite found in different parts 
Sheffield Laboratory, February, 1867. 
Art. XXUI—On a new Test for Hyposulphites ; by 
M. Carey Lx. 
to me as probable that ruthenium might be rendered 
available for that purpose. This I found to be the case, and 
that the reaction exhibited considerable delicacy. It is true t 
ruthenium is at present a very rare metal, and not within the 
& Tose color which passes into a rich carmine: with strong solu” 
sy fe 1S 80 intense as to be almost black. When diluted 
2 Shade is magnificent, rivalling the aniline red in richness. 
T have ready sta ithi “ 
onc ty hyposulphite of soda. I now ‘subjoin the limits ob- 
< solattn t to hyposulphite of soda. nits, 
gave a clear pO one four-thousandth of hyposulp 
* Journ. Chem, Society, II, iv, 69. 
