218 Meissner’s Researches upon Hlectrized Oxygen. 
appears when the gas is subsequently passed through water. 
On adding a few drops of sodium hydrate, the liquid becomes 
dark brown, and the mist at once appears. Meissner accounts 
for this result, by supposing that in the oxydation of the free 
acid both ozone and antozone are taken into combination in 
sulphurous aci o equivalents of oxygen are required for 
every two of sulphur; and to oxydize thio-sulphurous acid 
four equiv: en are needed to t phur ; 
Meissner believes that the two of oxygen in the former case are 
ozone; while the two times two in the latter are not of equal 
value, one pair being ozone, the other antozone, atoms. So 
also by the use of arsenous acid as an absorbent, both modifi- 
cations are removed from the electrized stream of oxygen, both 
when the acid is free as well as when its sodium salt is em- 
loyed. By using a very dilute solution, or the ordi satu- 
rated solution in small amount, the ozone may be imperfectly 
removed; and by passing the gas afterward through potassium 
iodid solution to remove the ozone entirely, the antozone which 
remains gives a feeble mist with water ; th i 
rticular interest is the action of electrized oxygen 18 
y 
ist upon their surfaces are placed in a horizontal glass tube, 
and subjected to the current of electrized oxygen, they shortly 
become covered for a short distance from the end of the tube, 
experiment continues, the other pieces remain unchanged, and 
not a trace of either ozone or antozone issues from the tube. 
So soon as the electrical action ceases, and ordinary oxyge® 
