J. P. Cooke on Stibiotrizincyle and Stibiobizineyle. 233 
Tension of hydrogen used, - - 0:379 metres. 
66 
6 
Tension of hydrogen +.oxygen, - 1-219 
Tension after combustion, - - 653 
Tension of gas consumed, = - ve 
- 0566 , 
0-566 x 3 = 0-378, amount of hydrogen consumed. 
ity can not be renewed indefinitely in this way since the particles 
: antimony set free by the acid adhere to the surface of the 
é’oy and soon form a coating impregnable to the strongest acids. 
The large maximum which was observed in the table opposite 
d p. ¢. of antimony indicated the existence at that point of a 
efinite compound. The true composition of this alloy, consid- 
eee the impurities of the antimony, was nearly Zinc AZ p. ¢., 
Ntimony 57 = 100. which corresponds almost precisely to the 
‘Ymbol Sb Zns. The compound which this symbol represents 
peal term, following the analogy of the nomenclature adopted. 
¥ the German chemists for similar compounds, 
Stcoxp Sznizs, Vol, XVIII, No. 53—Sept., 1864. 
