420 Proceedings of the Royal Society 
known fact that polyatomic compounds have a great tendency to 
combine with themselves to produce others of greater complexity. 
There is, therefore, a priori^ nothing improbable in the supposi- 
tion that oxygen may, under proper conditions, combine with 
itself; but, on the contrary, the analogies of science are in favour 
of such a supposition. 
It may be well here to repeat, that the author’s view of the con- 
stitution of antozone freed from all hypothesis as to the electric 
states of molecules is, that antozone is peroxide of hydrogen, in 
which the hydrogen is replaced by oxygen. 
The following Donations to the Library were announced: — 
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