‘ 
, 
3 
3 
A 
Meissner’s Researches on Oxygen, Ozone, and Antozone. 19 
peared, Osann adopted Schénbein’s idea of the existence of two 
modifications of phosphorous acid. . ; 
Quite recently, as our readers are aware, Schdnbein has given 
up his former opinions and now maintains that the cloud consists 
essentially of nztrite of ammonia. The objection with which he 
now argues the impossibility of its being constituted of phos- 
phorous acid, viz: its insolubility in water, he does not appear 
to notice is equally fatal to this new idea. 
. Meissner, on subjecting a stream of air that had passed over 
moist phosphorus to the tests already detailed, obtained with it 
all the phenomena which characterize antozone. Thus, when 
the air is washed with solution of iodid of potassium, whereb 
it is deozonized and thereupon is made to pass through water, 
it emerges from the latter as a thick cloud. The cloud vanishes 
of itself after the lapse of about half an hour and cannot then 
be reproduced, though it is scarcely diminished by agitation for 
a short time with water; when subjected to drying agents, it 
disappears, but is formed again on renewed contact with water, 
if too much time is not allowed to transpire. 
In the air which is acted on by phosphorus there thus appear 
both ozone and antozone, asin the case of electrized air; but 
