REVIEW. 
•717 
familiar to most men who own horses. Glanders is a common sequence 
to this malady; and the same may be said of Scarlatina, Typhoid Pneu¬ 
monia, and Coughs of a very obstinate nature. Such sequences, how¬ 
ever, are not common except in stables that are badly ventilated. No 
surer indication, in a general way, of a badly ventilated stable, than 
where scarlatina readily supervenes upon catarrh, or where obstinate 
coughs remain after its inmates have suffered from the epidemic forms 
of the disease. Another sign,—a sign alike indicative of uncleanliness 
and bad ventilation,—is where the paint upon the woodwork of the 
stable, takes on a dull leaden colour. This is a common effect, and one 
readily seen by an observer. 
“ Bf.st mode to obtain thorough ventilation. By thorough venti¬ 
lation is meant, a constant supply of 'pure air , in quantity sufficient to dis¬ 
perse that which is impure in any apartment into which it may be admitted y 
and in, which gases are generated unfit for the healthy maintenance of 
life - 
“ Several modes are in use by which air is admitted into stables to effect 
this purpose : sometimes it is done by a moveable trellice fixed in the 
lower half of the window—sometimes by openings cut through the wall 
either in front of, or behind the horses. In short, it is sought to be 
done by any mode or contrivance, just as chance may hit upon, or neces¬ 
sity at the moment may devise. We cannot ventilate an apartment with¬ 
out the admission of air. The difficulty is, to admit the air in a manner 
which will not prove objectionable. Cold draughts are very objectionable. 
The supply of air within the stable should be regularly and equally dis¬ 
tributed. A very excellent plan to effect this is pursued by Mr. Watson, 
of Halifax. This gentleman, by his process, has ventilated numbers of 
stables, many of which I know where the mode in question answers ad¬ 
mirably. The plan he adopts is at once simple and complete. It mainly 
consists of a large tube, which is equally divided within, from top to 
bottom. This tube descends from above the roof, down through the 
floor or ceiling of the stable ; at the bottom of the tube, two trap doors 
are secured by hinges to the central division. The doors are constructed 
to move by the aid of cords and pulleys, and being opened either wholly 
or in part, a double current of air is established ; or in other words, the 
bad air is made to ascend and depart, at the same moment the pure air 
descends, and diffuses itself through the stable. Thus a gentle, but per¬ 
fect interchange of good and bad air is effected. The expense attending 
the fixing of Mr. Watson’s apparatus is not excessive ; and where a per¬ 
manent improvement of the kind is necessary, and about to be effected, 
perhaps his plan will be the best to adopt. It is also to be strongly 
recommended on another account, that it does not readily work out of 
repair. 
If the premises are favorably situate, good ventilation may be effected 
by the following mode, one equally simple as that above recommended. 
Make an opening ten inches square through the wall in front of the 
heads of the inmates. Make it behind the woodwork dividing the hay¬ 
racks from one another, or immediately behind where the divisions of 
the stalls commence. One opening in the position named, and of the 
size specified, will be sufficient to afford air for a single horse. To modi¬ 
fy the current, and prevent the entrance of foreign bodies from without, 
place an iron grate against the outside of the opening. Where it is im¬ 
practicable to cut through in the manner directed, the difficulty may be 
obviated by carrying tubes made of iron or wood, through the roof, 
taking care to cover the upper opening of the tube with perforated caps. 
A corresponding number of openings of the same size are next to be 
xxxii. 94 
