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nob easily answered ia a satisfactory manner.” Mr. Dancer 
then gives some very good reasons for his assertion. But 
most ludicrously when the journal asserts “ that it is a ques- 
tion more easily asked than answered,” proceeds at once, as 
if all was clear, to answer the question, doubtless, to the 
writer s satisfaction. He says, too, “ still more manifestly is 
this subtle quality (ozone) produced by the dashing of waves 
and spray against the air.” Doubtless, there is a good deal 
of truth in this assertion, but who is the author of the idea ? 
Where was it first penned ? If the writer copied it, why 
did he not indicate in the usual way that he had done so ? 
Again, we read in the journal, on its own apparent authority, 
that “It need only be added, that the delicate and whole- 
some freshness of the air, after a rattling thunderstorm, is 
very much due to the development of ozone.” How fine all 
this sounds, especially when it is known that Mr. Dancer 
had just written in a paper that, doubtless, had been seen 
by this writer, “ That heavy storms of rain, hail, and snow, 
are always accompanied by free electricity, and a manifes- 
tation of ozone. The pleasant sensations experienced on 
breathing the atmosphere after heavy rain are, perhaps, not 
altogether due to the washing of the atmosphere, but in part 
produced by the ozone contained in it.” Both Mr. Baxen- 
dell’s paper and Mr. Dancer’s paper were published in the 
same issue of the “ Proceedings” of this Society. 
“ On a Popular Method of Observing Phenomena on the 
Surface of the Sun,” by J. B. Dancee, F.B.A.S. 
The surface of the sun is generally examined by direct 
vision through the telescope, but observers sometimes pro- 
ject a magnified image of the sun through the eyepiece on 
to a sheet of white cardboard. This method has the advan- 
tage of enabling several persons, at the same time, to view 
the spots, an eclipse, the transit of a planet, or other pheno- 
mena, and when the telescope is mounted in an observatory 
