Animal Charcoal. 165 
or otherwise. And, further to prove that the gum is not 
structurally altered, it may be deprived of all the oxygen 
it contains by a deoxidizing agent, sulphuretted hydrogen. 
As an incidental observation, it may be noted how large a 
quantity of sulphuretted hydrogen is required to deprive 
the gum of its oxygen when oxydized by ozone. 
Water, then, in itself, may give rise to ozone, and induc- 
tively to antozone; why it is that certain liquids evapo- 
rating should become ozonized—why they should suffer 
partial decomposition, for it is only those substances which 
contain oxygen—in combination with another opposite 
element, that are capable of so doing, cannot be said with 
any amount of certainty. Oxygen is materially heavier, 
denser, than hydrogen, in the ratio of eight to one. When 
in combination the action of heat in a lesser form, such as 
to raise it to 212°, is as of a partial disturbance of its con- 
stitution ; the effect of this is, that the hydrogen probably 
absorbs and becomes satisfied with heat in one-eighth the 
time necessary for accomplishing the same effect on the 
oxygen, it becomes, during the full accomplishment of this 
process on the oxygen, partially volatilized. Hence, in 
the vapour is found the hydrogen or antozone principle, in 
the water the ozone. Under microscopic examination the 
decomposition of water by voltaic electricity presents an 
appearance confirmatory of this theory, the gases being 
freed much in the same manner as here described. 
In this wonderful generative agent—viz., evaporation is 
the vast supply of ozone maintained in nature. In the 
evaporation consequent upon rainfall, that constantly sa- 
turates the face of the earth, and from the condensation of 
the vapour generated therefrom, is animal and vegetable 
organism nourished and sustained. Organised substances 
in generation and decay, in health and disease, require ozone 
for their development—-in the one case, for the cellular 
secretions and constructing the animal tissue; in the other, 
for the full and speedy oxidizement of the germ of decom- 
position. The combinations, moreover, ozone effects with 
healthy organism in the part of food is striking, and worthy 
of observation. The gluten of wheat, milk, potato, and 
many other essential articles of nutrition are abundantly 
impregnated with free ozone, as may be detected by tinc- 
ture of gum guiacum (Brande). Truly, we may observe, 
that this is another instance of an all-wise Providence for 
the sustenance of our being. What is more bountifully 
supplied us than water? What a more faithful minister to 
