314 Dr Turner’s Experiments on the Application of 
Exp. Mixl . Effects of a Platinum ball. 
1 vol. of Carbonic Oxide, and 7 vol. Acted well. 
1 vol. of Coal Gas. - - 3 
1 - 5 
1 7 
1 vol. of Sulphurous Acid Gas, and 13 
1 .... 18 
1 - ... 37 
1 .... 75 
1 vol. of Sulphuretted Hydrogen, and 19 
1 .... 29 
1 .... 59 
5 vol. of Carbonic Acid Gas, and 1 
8 - - - - 1 
No action when cold; a trace of ac- 
tion when warm. 
Sluggish action when cold ; more 
active w'hen warm. 
Acted well. 
Olefiant Gas acted nearly in the same 
way. 
No action, either cold or warm. 
Rapid action when cold or w r arm ; 
but it ceased as rapidly as it began 
w r hen a very small quantity of Gas 
had disappeared. 
Acted as in the preceding case, only 
more gas w r as now consumed be- 
fore the action ceased. 
Very rapid action at first, but still all 
the mixture was not consumed. 
The influence of the Sulphurous 
Acid Gas was perceptible when it 
was only T i s th of the mass. 
No action either cold or warm. 
Very sluggish and imperfect action. 
Rapid, action at first, but it ceased 
before all the gas w : as consumed. 
The influence of this gas w r as very 
perceptible when it was only T i 5 th 
of the mass. 
Immediate action. 
Immediate and perfect action, but 
rather sluggish. 
Still acted completely. 
Diminution of volume was occasion- 
ed when still larger quantities of 
Carbonic Acid were mixed with 
1 vol. of the Exp. Mixture. Ni- 
trous Oxide acted very much like 
Carbonic Acid. Both of these 
gases have certainly more influ- 
ence in preventing the action of 
Platinum than Oxygen, Hydrogen, 
and Atmospheric Air, though less 
than the other gases. 
Very slight trace of action. 
5 vol. of Muriatic Acid Gas, 
and 1 
