Meissner’s Researches upon Electrized Oxygen. 215 
zone-mist appears, bangers momentarily in density until the 
flask, two inches in diameter, becomes perfectly opake. This 
experiment, performed is peste this way, was repeated 
twelve times, and always with the same result; Dr. Meissner 
believes therefore, that neither hydrogen nor nitrogen is in any 
way concerned in the production of this en mist. 
The second point, that the presence of aqueous vapor in the 
electrizing tube is not necessary to the result, was established 
te filling this tube with pure oxygen dried over anhydrous 
oka acid, then electrizing it, and, after intermitting the 
Sree » passing it through the solutions. The result was the 
same as befo 
Nitrogen having been shown to be without effect on the pro- 
duction of the mist, the especial apparatus for the electrolytic 
preparation of oxygen was given up, and this gas was obtained 
from potassium chlorate, and washed with a solution of potas- 
im moisture, though containing per erha aps a Sia of cues 
passing a stream of this electrized oxygen, first over phos- 
oe an i then gs iodid of potassium solution, and 
afterward t 
Meissner believes heretics “that these experiments, not once 
only or a few times repeated, but performed very frequently, 
prove the following point: that the mist formed by de-ozonized 
electrized oxygen with | Beatie appears when neither 
chlorine, nitrogen, ammonia, pase neat nor watery 
vapor is present in the tube i ri ee rizing occurs; an 
that the presence or a of neither of these scm is exod 
sary afterward for its formation. That in other words, the mis 
pee coee jorde uires only dry electrized oxygen, the peel 
iodid used e-ozonization, and the vapor of water, for its 
pro uction. 
'p 
sorbing the ozone, and thus setting the pasar oxygen 
free, Meissner proves by ai this substance by a great gen 
riety of other bodies, differing widely in chemical 6 erties and 
— only in the alerted of absorbing ozone. i 
—which m m even a trace of gallic acid— 
potassium ferroc ' anate, the . 
phids of potas 4 sodi barium sulphid—the hydrosul- 
phurys a ing the de-o: zonized oxygen 
