416 
Proceedings of the Royal Society 
ganate of potassium are reduced by antozone. Peroxide of hydro- 
gen also reduces chromic and permanganic acids and their salts. 
We are thus led to regard antozone as a compound analogous 
in constitution to peroxide of hydrogen ; in other words, to regard 
antozone as peroxide of hydrogen, in which the hydrogen is 
replaced by oxygen, or representing, as before, peroxide of hydrogen 
by -h(H200), antozone is -f-(OOO), and ozone -(000). The + 
and — signs being merely used to denote the idea that one com- 
pound acts as electro-positive and the other as electro-negative. 
If we adopt the hypothesis that free oxygen is formed by the 
combinations of two atoms of oxygen (0 = 16), one of which acts 
as an electro-positive and the other as an electro-negative atom, 
H 
free oxygen is 0 0. 
Hence, since free oxygen is produced when ozone is decomposed 
by mercury, ozone must be either 0 0 0 or 0 0 0, in accordance 
with the equations 
Hg 2 4-000 = Hg 2 0 4- 0 0, or 
Hg2 4- 000 = Hg2 0 4-0 0. 
The latter formula is inadmissible, because, as we have shown, 
ozone acts as an electro-negative compound, which therefore re- 
quires that the two outside atoms should both be electro-negative. 
For 0 0 0 would neither be decidedly electro-negative nor de- 
— 1 — 
cidedly electro-positive. Hence ozone is 0 0 0, which is the view 
of Professor Odling. 
Sir Benjamin Brodie has shown (Phil. Trans. 1850) that the 
reducing properties of peroxide of hydrogen require us to assign to 
4- — -1- 4- — -f- 
it the formula H 2 0 0. Hence antozone is 0 0 0, a formula which 
indicates that antozone acts as an electro-positive compound. The 
production of ozone and antozone by the passage of electric sparks, 
or the silent discharge through dry oxygen, is thus represented by 
the following equation : — 
Ordinary Oxygen. Ozone. Antozone. 
1- 1- 1- 1 -\ h 
00 4 - 00 4 - 00 = 000 4 - 00 0. 
These formula indicate hypothetically why antozone combines 
