418 
CHRONIC INFLAMMATION OF THE LUNGS. 
cussion announced the existence of this hepatization not yet com¬ 
plete in the middle and inferior lobes; the superior lobe was not 
yet in a state of congestion, but in the following days (five or 
six) it had rapidly hepatized.” Here is sufficient to prove that 
the red hepatization may develope itself in a short space of time; 
beside which, it is to be observed, that if these lesions charac¬ 
terise the second stage of pneumonia, and which he does not 
dare call a chronic disease, our colt, which presented no trace 
even of these lesions, must have exhibited only the first stage of 
pneumonia. 
In page 348, under the title of iC Pleuro-pneumonia, third 
stage," there is the folio wing important case :— 
“ 28th. —The superior and middle lobes of the right lung were 
dense, compact, and sunk in water. Being cut into, they pre¬ 
sented a mixture of red and grey striae, unequally distributed 
through the substance of the lobes. Where the red striae w r ere 
found, the pulmonary tissue w T as in a state of red hepatization; 
where the grey existed, the parenchyma of the lung could be 
reduced by a slight pressure to a dirty grey pulp , whence oozed 
a great quantity of fluid of the same nature.' 9 I have under¬ 
lined the lesions which wmuld have indicated chronic unsoundness 
in the domestic animals, and of which there w~as not the slightest 
trace in the colt. 
In page 420, under the 48th case, w r e read, “ Tuberculous ex¬ 
cavations, to the number of three or four, in the upper part of the 
lung, and each of these cavities filled with a puriform fluid, in 
which floated little particles of tuberculous matter.” When a 
horse shall present to me lesions like these, I shall not hesitate 
to pronounce him to have been long unsound; but we had none 
of these lesions in the case before us. 
The Difference between the Blood of a Jaundiced and 
Healthy Person. 
A prize was offered by the French Academy for the best 
analysis of the blood of a person labouring under jaundice, com¬ 
pared with that of a person in health, and establishing the che¬ 
mical differences. One essay alone w r as offered. The author 
first described the constitution of the blood in a healthy state, and 
he found in that fluid (independent of water, albumen, fibrine, 
crystallizable fatty matter, colouring matter, osmazome, some 
soluble extractive matter, soda, urea, and many salts, as described 
by Berzelius and Marc-et) an oily matter. He described a new 
method of separating the colouring matter, by treating the blood 
with sub-acetate of lead. He endeavoured to trace the character 
of the blood as affected by difference of sex, age, and tempera- 
