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decomposed by haze or fog, and was given off or produced 
when evaporation changed haze or fog into invisible aqueous 
vapour. 
From the very small degree of solubility of ozone in 
water it seems highly improbable that the amount of water 
existing in ordinary haze or fog could absorb the whole of 
the ozone usually found in the atmosphere, nor could the 
whole of this ozone be contained in the water from which 
the aqueous vapour in the air had been derived. Moreover, 
not only does haze prevent the coloration of the test 
papers, but it often rapidly bleaches those which had 
already been coloured by the action of ozone. This 
bleaching effect, however, is not produced if the papers are 
thoroughly wetted by immersion in water, and therefore it 
has been attributed to the action of a form of oxygen 
differing essentially in some of its properties from ozone, 
and which has, therefore, received the name of antozone. 
The existence of antozone is, however, doubted by many 
chemists, and it becomes, therefore, necessary to seek some 
other explanation of the bleaching effect of fogs and haze, 
which will also, at the same time, account for their effect in 
apparently absorbing or decomposing ozone, and afterwards 
of giving it off or forming it on evaporation. 
As it is generally supposed that the minute vesicles or 
globules of water which form fog and haze are similar in all 
respects, except perhaps in size, to the globules which form 
the spray from a breaking wave, a waterfall, or fountain, it 
was evidently desirable to ascertain whether the spray from 
any of these sources would produce effects similar to those 
produced by fog and haze, since it might be contended that 
as in the one case the globules were the result of a conden- 
sation of aqueous vapour taking place in the air, while in 
the other they were produced by a more or less violent 
mechanical action, their effects upon the oxygen or ozone in 
the atmosphere might be very different. 
