634 
VENTILATION, 
Peelet, is positively injurious, not, however, from the mere 
deficiency of oxygen, but from the actual deleterious action 
of the carbonic acid gas. 
Attempts have been made to calculate the number of cubic 
feet in space which are required for each individual, in order 
to maintain a healthy condition of the body. In private 
houses, especially in the bedrooms, each individual should 
have not less than 500 cubic feet. In civil and military hos¬ 
pitals it is from 1000 to 2000 cubic feet. 
The result of the experiments of Her Majesty’s Commis¬ 
sioners demonstrates that the minimum should not be less 
than 600 cubic feet, and that in a room containing a number 
of men the whole air of the room should be renewed at 
least twice in the hour. In other words, that each man 
should have, in round numbers, 1200 cubic feet of fresh air 
supplied to him per hour. 
It is quite certain that hitherto no adequate provision has 
been made in our stables for the quantity of cubic space 
necessary for the health of its inhabitants. 
Take, for instance, the stables at the cavalry barracks. The 
fourteen-horse stable contains about 13,983 cubic feet, a 
quantity barely sufficient for a similar number of men. The 
newly erected Horse Artillery stables have for sixty horses a 
space of 84,332 cubic feet or 1408 cubic feet per horse, a 
much larger space than the former, yet not much more than 
the allowance for a man in hospital. Again, the space per 
horse in the infirmary boxes, permanent barracks, is 2016 
cubic feet, which, although again affording more space, is 
very little in excess over that granted to a patient in King’s 
College Hospital, London. 
Taking the whole of the foregoing facts into consideration, 
I have arrived at the conclusion that, where there are a 
number of horses together in any stable, it should contain a 
sufficient space, so as to appropriate 2500 cubic feet to each 
horse, and that no horse in a single stable should have less 
than 2000 cubic feet. 
And when we further consider the large amount of dete¬ 
rioration this atmosphere sustains by respiration, cutaneous 
exhalation, pulmonary transpiration^ evaporation of urine, 
retention of faecal matter during certain periods of the day, 
and other concomitant evils, I think we may fairly assert 
that arrangements should be made whereby this atmosphere 
may be changed at least three times during the hour. The 
stable being so constructed that from 6000 to 8000 cubic 
feet of air per horse should quickly and regularly pass into 
the stable every hour. 
