200 Mr. J, Davy's Account of some Experiments on the 
in which oxygene and in which chlorine combines, as 15 to 
7.5 and 33.6. This appears from the proportions of the con- 
stituent parts of sulphuretted hydrogene and sulphureous acid 
gas, for I have found 100 cubic inches of the former to weigh 
36.64 grains, and 100 of the latter 68.44 grains. In the com- 
parison, therefore, between the sulphurets of tin and the com- 
binations of this metal and chlorine, 15 by weight of sulphur 
are equivalent to 33.6 of chlorine. And the tin being as 55, it 
appears from the analysis of the gray sulphuret and stannane, 
that the sulphur is to the chlorine as 35 exactly to 33.4; and 
from the analysis of the other two compounds, aurum musivum 
and the liquor of Libavius, as 15.5 to 33.5, or as 31 to 67. 
The proportions of sulphur in the two sulphurets of iron, 
do not accord with the proportions of oxygene in the oxides, 
or of chlorine in the chlorine combinations ; but I am yet ig- 
norant of the cause of this difference. 
100 grains of lead, heated with sulphur in a glass tube, 
afforded, in two trials, 115.5 grains of fused sulphuret. Hence 
lead being as 97.2, the sulphur is to the chlorine in the re- 
spective combinations as 15.09 to 33.8. 
Sulphuret of antimony contains 25.9 per cent, of sulphur. 
Hence antimony being as 42.5, the sulphur in the sulphuret is 
to the chlorine in the butter of antimony, as 14.86 to 34.6. 
100 grains of bismuth heated with sulphur afforded 122.3 
grains of sulphuret. Hence bismuth being as 67.5, the sulphur 
is to the chlorine as 15.08 to 34.2. 
In the following table, the proportions are collected in which 
chlorine, sulphur, and oxygene combine with several metals ; 
the numbers representing the metals are kept constantly th@ 
(Same, for the greater facility of comparison. 
