ON OZONE IN RELATION TO HEALTH AND DISEASE. 37 
to indicate the nature of the malady. The mucous membrane 
of the bronchial tubes is coated with a tenacious secretion, 
the lungs are congested in points, and the extreme termina- 
tions of the bronchial tubes are filled with a frothy, pearl-like 
mucus. 
The blood is changed in physical quality under Ozone. It 
is not altered materially in colour, but it undergoes rapid 
coagulation, and its corpuscles run together with unusual force, 
forming into close masses or groups. I believe, also, that the 
fibrine, or plastic matter of the blood, is increased in quantity, 
either actually or relatively ; but on this point I am not as 
yet positively informed by experimental investigation. It is 
worthy of remark that these effects of Ozone, administered 
by inhalation, are more readily developed in carnivorous than 
they are in herbivorous animals. It is much easier, for 
instance, to bring rats under the influence of Ozone than 
rabbits. 
From the series of facts relative to the effects produced 
by excess of Ozone — and they are facts which any one who 
chooses to go to a little trouble can learn for himself — it 
is no difficult task to arrive at the conjecture that conges- 
tive bronchitis and inflammation of the lungs in man and 
animals, are produced by the respiration of Ozone in the air : 
the difficulty, in fact, is to avoid coming to that conclusion too 
hastily, the phenomena of the artificial and the phenomena 
of the natural disease being so closely allied as to admit of no 
clear distinction. Why, then, should we hesitate to accept 
the conjecture ? If it be faithfully true, it makes dark places, 
illuminate, and the most crooked paths straight ; it reveals a 
new era in medicine, and in one vast department puts the 
physician side by side with the pure physicist in the circle of 
the fixed sciences ; if it be true, the physician will only have 
to wait for a little further advance on the part of the meteor- 
ologist to be able to predict the advent of diseases — a sure 
proof that a degree of fixed science has been actually attained. 
At the last meeting of the British Association for the- 
Advancement of Science, my distinguished friend. Dr. Moffatt, 
did, indeed, somewhat more than anticipate these successes. 
In a paper read by him, and entitled, “ Phosphorescence in 
connection with Storms and Disease,” he exhibited tables to 
show that the atmospheric conditions under which the 
luminosity of phosphorus took place were those of the south 
or equatorial current of air, namely, a minimum of atmo- 
spheric pressure, and maximum of temperature and humidity ; 
and that those under which non-luminosity takes place are 
the conditions of the north or Polar current, namely, maximum 
of pressure and minimum of temperature and humidity. The* 
