27G 
PNEUMONIA—FRENCH SCHOOL. 
The progress of this disorder, when it is intense, is always 
very rapid, especially when it attacks both lungs at once, and 
the greater part of both ; it is not so rapid when the inflamma¬ 
tion is slighter, and its seat not so extensive. 
Pneumonia may terminate in resolution, hepatization (red 
induration), oedema of the lungs, gangrene, the assuming of a 
chronic form, and death. 
The lesions which are found on post-mortem examination dif¬ 
fer according to the progress of the disease when the animal died. 
—First stage. The pulmonary tissue is heavier, denser, but still 
sufficiently crepitant; infiltrated with abundant bloody and spu¬ 
mous serosity; the alveolar texture is yet apparent ; the inte¬ 
rior of the lungs is of a red colour, more or less deep. — Second 
stage. No crepitus; the tissue easily lacerated, and having a 
granulated appearance; and the density and specific gravity of 
which have some analogy to that of the liver (hepatization or red 
induration); the interior of the lungs red, with patches of white 
attached to the vessels and the pulmonary cells; the bloody se¬ 
rosity less abundant, and not following the knife .—Third stage. 
A more decided granulated aspect of the pulmonary tissue; a 
purulent fluid escaping at every incision. In some cases the pus 
is infiltrated into the substance of the lungs, and accumulates at 
certain points, and occupies a greater or less space, and to such a 
degree that perfect abscesses are formed. The parietes of these 
abscesses are reduced to a state of purulent softness and decay, 
which diminishes with the distance from the centre, and they 
present no traces of false membranes. 
When the disease terminates in gangrene (gangrenous perip- 
neumony), the pulmonary tissue is shaded with a brown, yellow, 
green, or black colour. Some soft points fiill into a state of putrid 
deliquescence. A sanious, turbid greyish green fluid, of an insup¬ 
portable gangrenous odour, flows from the disorganized parts 
wherever they are cut. 
General bleeding is the most powerful remedy to oppose to 
pneumonia. It ought to be copious, and repeated until the labo¬ 
rious respiration and fulness of the pulse sensibly diminish, and 
at intervals so little removed ks not to give the inflammation time 
to regain its original intensity. Gummy and mucilaginous 
drinks, a mild temperature, restricted diet, and perfect repose, 
ought to be added to the preceding remedies. When the state 
of irritation has somewhat subsided, the time is arrived to make 
use of revulsives (setons and stimulating applications on the 
brisket and sides.) 
