"The primary symptoms of pleuro-pneumonia are generally obscure, and too often excite but little attention or anxiety. As the disease steals on, the animal becomes dull and dejected, and, if in the field, separates itself from its fellows. It becomes uneasy, ceases to ruminate, and the respirations are a little hurried. If it be a milk-cow, the lacteal secretion is diminished, and the udder is hot and tender. The eyes are dull, the head is lowered, nose protruded, and the nostrils expanded. The urine generally becomes scanty and high-colored. It is seldom thought that much is the matter with the animal until it ceases to eat; but this criterion does not hold good in most cases of the disease, for the animal at the outset still takes its food, and continues to do so until the blood becomes impoverished and poisoned; it is then that the system becomes deranged, the digestive process impaired, and fever established. The skin adheres to the ribs, and there is tenderness along the spine. Manipulation of the trachea, and percussion applied to the sides, causes the animal to evince pain. Although the beast may have been ill only three days, the number of pulsations are generally about seventy per minute; but they are sometimes eighty, and even more. In the first stage, the artery under the jaw feels full and large; but as the disease runs on, the pulse rapidly becomes smaller, quicker, and more oppressed. The breathing is labored, and goes on accelerating as the local inflammation increases. The fore extremities are planted wide apart, with the elbows turned out in order to arch the ribs, and form fixed points for the action of those muscles which the animal brings into operation to assist the respiratory process. In pleuro-pneumonia, the hot stage of fever is never of long duration, [simply because there is not enough vitality in the system to keep up a continued fever.] The state of collapse quickly ensues, when the surface heat again decreases, and the pulse becomes small and less distinct. We have now that low typhoid fever so much to be dreaded, and which characterizes the disease in common with epizoötics.

" ... The horse laboring under pleuro-pneumonia, or, indeed, any pulmonary disease, will not lie down; but, in the same circumstances, cattle do so as readily as in health. They do not, however, lie upon their side, but couch upon the sternum, which is broad and flat, and covered by a quantity of fibro-cellular substance, which serves as a cushion; while the articulation between the lower extremities of the ribs admits of lateral expansion of the chest. In this position cattle generally lie towards the side principally affected, thus relieving the sounder side, and enabling it to act more freely. There is sometimes a shivering and general tremor, which may exist throughout the whole course of the disease. (This is owing to a loss of equilibrium between the nerves of nutrition and the circulation.) ... As the case advances in severity, and runs on to an unfavorable termination, the pulse loses its strength and becomes quicker. Respiration is in most cases attended by a grunt at the commencement of expiration—a symptom, however, not observable in the horse. The expired air is cold, and of a noisome odor. The animal crouches. There is sometimes an apparent knuckling over at the fetlocks, caused by pain in the joints. This symptom is mostly observable in cases when the pleura and pericardium are affected. The animal grinds its teeth. The appetite has now entirely failed, and the emaciation becomes extreme. The muscles, especially those employed in respiration, become wasted; the belly is tucked, and the flanks heave; the oppressive uneasiness is excessive; the strength fails, under the convulsive efforts attendant upon respiration, and the poor animal dies.

"In using means to prevent the occurrence of the disease, we should endeavor to maintain in a sound and healthy tone the physical powers of the stock, and to avoid whatever tends to depress the vital force. Exposure to the influence of contagion [and infection] must be guarded against, and, on the appearance of the disease, every precaution must be used to prevent the healthy having communication with the sick. By a steady pursuance, on the part of the stock proprietor, of these precautionary measures, and by the exercise of care, prudence, and attention, the virulence of the disease will, we are sure, be much abated, and its progress checked."

As the reader could not be benefited by our detailing the system of medication pursued in England,—at least we should judge not, when we take into consideration the great loss that attends their best efforts,—we shall therefore proceed to inform the reader what the treatment ought to be in the different stages of the disease.

General Indication of Cure in Pleuro-Pneumonia.—Restore the suppressed evacuations, or the secretions and excretions, if they are obstructed.

If bronchial irritation or a cough be present, shield and defend the mucous surfaces from irritation. Relieve congestions by equalizing the circulation. Support the powers of the system. Relieve all urgent symptoms.

Special Practice.—Suppose a cow to be attacked with a slight cough. She appears dull, and is off her feed; pulse full, and bowels constipated; and she is evidently out of condition.

Then the medicines should be anti-spasmodic and relaxant, tonic, diaphoretic, and lubricating.

The following is a good example:—

Powdered golden seal, (tonic,)1 table-spoonful.
Powdered mandrake, (relaxant,)2 tea-spoonfuls.
Powdered lobelia, (anti-spasmodic,)1 tea-spoonful.
Powdered slippery elm or mallows, (lubricating,)1 table-spoonful.
Powdered hyssop tea, (diaphoretic,)1 gallon.