326 Meissner’s Researches on Oxygen, Ozone, and Antozone. 
thin glass tube somewhat longer than itself and about 03 mm, 
in width. Each of these tubes is sealed at one end. Into the 
other end is fused a wire of platinum which, within the tube, is 
twisted with the copper wire, and without the tube projects an 
inch or so. The twelve tubes thus made, are arranged within a 
glass tube 7 mm. wide and 6 decimetres long, so that the pro- 
jecting platinum wires of six of them are at one end and those 
of the other six are at the other end of this wide tube. These 
two sets of wires are each twisted about a larger platinum wire 
which passes through and is fused into the wall of the wide tube. 
The tubes of the one bundle are distributed among those of the 
other as equally as may be; they are, moreover, in close con 
tact, and the spaces surrounding them are as narrow as possible. 
On connecting the extremes of these two series of inclosed wires 
with the electrodes of the secondary coil of a powerful induc- 
tion apparatus, the electrical discharge takes place through the 
walls of the narrow tubes and through the air that surrounds 
. The discharge is unattended with sparks, and on ap 
sree the ear only a faint crackling sound is perceptible. 
in the dark the bundle of fine tubes shines throughout its 
whole length with a reddish-violet light. During the electrical 
action the air bathing the small tubes is powerfully ozonized. 
By adapting suitable apparatus to the large tube the ozonized 
air may be removed and submitted to examination, and its place 
supplied with fresh air, at pleasure. In Meissner’s resarches the 
The perfectly dry air, after traversing the ozonizer, was sub- 
mitted to the action of reagents in receivers of glass connected 
with the ozonizer by means of a mercury joint, this metal being 
unaffected by dry ozone. : 
The first point Meissner sought to investigate was whether 
dry electrized air, after being deprived of ozone, possessed aa # 
erties other than those of common oxygen and nitrogen. | odid 
found that by transmitting it through a strong solution of 1 > 
of potassium it was readily and totally deprived of ozone; * 
stream of air thus deozonized exhibited nothing remarka 
until it had been passed through pure water, but, as 1t eme? 
from the water, it appeared in the form of a thick white mist, per 
fectly ‘similar to that formed by the cooling of steam, whic der 
sometimes so dense as to render the part of the small vessel 
