Meissner’s Researches on Oxygen, Ozone, and Antozone. 327 
filled with it quite opake. There was no perceptible change of 
temperature, and the mist was formed equally well whether the 
water traversed by the deozonized air jindicated 35° or 0° C. 
The mist also appeared when the stream of air merely passed 
through a moistened tube, and sometimes the cloud formed at 
once, when the air escaped from a somewhat dilute solution of 
iodid of potassium; but in case this solution was concentrated, 
and especially when the air on leaving it streamed through a 
chlorid of calcium tube, no mist appeared until the air came in 
contact with water. 
The appearance of the mist strictly depends upon the action of 
the induction instrument. When it ceases to work, the mist 
disappears, allowance being made for the time occupied by the 
air-current in traversing the apparatus. The mist is denser or 
rarer the more or less vigorous the electrical excitement. The 
same cloud is formed when other d izing agents are employ 
ed instead of iodid of potassium, viz: pyrogallic acid, and like- 
wise, when, in the absence of a reducing solution, the dry elec- 
trized current comes at once in contact with water. 
Further experiments demonstrated that the cloud is formed 
when pure oxygen gas, prepared either by electrolysis or from 
chlorate of potash, is submitted to the electric influence and sub- 
Sequently treated as above described, while that under the same 
ee nnn pure nitrogen and pure hydrogen suffer no appar- 
ent change. 
The author found himself thus led to the conclusion that when 
simultan 
oxygen is subject to electrical action there is forme e- 
amniov 
f a dry glass cylinder, it displaces the air, preserving a sharply 
defined boundary, and by aaa agitation is easily broken into 
Ss 
