ON PERIPNEUMONIA IN CATTLE. 5 77 
health ; also flocculi of yellow lymph are to be found therein : 
shewing that within this serous membrane diseases make their 
appearance similar to those that more frequently affect the 
pleurae and the cellular tissue. 
Very rarely are both lungs affected alike. Sometimes the 
right, sometimes the left lung is affected, and very often the 
disease is found to be of longer standing in the inferior than in 
the superior part of the organ. 
Sometimes, towards the conclusion of the disorder, we find 
collections of yellow serosity, oedema , under the skin at the 
inferior part of the thorax, at the lower part of the neck, and 
underneath the belly. 
The sanguineous engorgement of the pulmonary lobules, the 
accumulations of fluid containing fibro-albuminous deposits in 
the cellular tissue underneath the skin, between the lobules of 
the lungs, within the pleurae and pericardium ; the solidity and 
non-subsidence of the substance of the lung, and its impermea- 
bility to air; — these morbid changes which I have met with 
myself, and which the veterinary surgeons of Auvergne have 
related to me, plainly shew that the disease is evidently the 
same in this country as in other parts of France. 
But in one respect has any difference appeared, and that is, 
though to be sure it occurred very rarely, that there has been a 
morbid augmentation of the synovia contained within the bursae 
of the tendons and the capsular ligaments of joints. 
Symptoyns . — The disease commences by the symptoms com- 
mon to other affections, and which at any other time than that 
of the epizootic would assuredly not attract attention. When 
at such a time a beast breathes more quickly than denotes 
health, when his coat remains on end, and he is off his ap- 
petite, there is reason to apprehend an epizootic attack. Fre- 
quently, some days after this it happens that cough sets in, at 
first morning and evening, afterwards during the day, always 
short, but becoming shorter and shorter as the disease advances. 
Attentively inspected, the inspirations and expirations will be 
found unequal : the former are longer and require greater effort. 
We perceive the ribs rising beyond the level of the intercostal 
muscles; and the alae of the nostrils becoming dilated through 
the contraction of the muscles of the face, an action hardly ob- 
servable in health. When the air has thus with great labour 
entered into the lungs, it passes out by a short respiration. All 
this while the beast neither feeds nor ruminates, and its milk 
becomes dried up with great rapidity. Indeed, a falling off in 
the milk even precedes these symptoms; so that the men who 
milk the cows know by this sign that the cow is going to be ill. 
