Incisions were made through the skin, but in opening them no blood flowed. The venæ cavæ themselves did not contain any--there were only two clots of blood in the cavities of their hearts. One of them, of the size of a small nutmeg, occupied the left ventricle; the other, which was still smaller, was found at the base of the right ventricle. The chest of one of them enclosed a small quantity of serosity; a similar fluid was between the dura mater and the arachnoid membrane, and the same was the case in the larger ventricles of the encephalon. The other viscera did not offer anything remarkable, except the paleness and flaccidity of their tissue. The great fatigues of the chase, and the immersion of these animals in water at the time that they were very much heated, appeared to have been the causes of this singular disease. In the report of the labours of the School of Alfort, in the year 1825, the same anæmia was remarked in two dogs that died there; one of them had lately undergone a considerable hemorrhage, and in the other anæmia had developed itself spontaneously. It is in fact among dogs that this extreme anæmia has been principally observed, and is ordinarily fatal. It has been remarked by M. Crusal in a bullock attacked with gastro-enteritis. This disease, according to M. Vatel, is generally the symptom of a chronic malady, or the instantaneous effect of an excessive hemorrhage. It is rarely primary. The extreme discoloration of the tissues, and of the mucous membrane more particularly, the disappearance of the subcutaneous blood-vessels, and the extreme feebleness of the animal, are the principal symptoms. There also often exists considerable swelling of the limbs. The following singular case of a wound penetrating into the chest and pericardium of a dog, is recorded by Professor Delafond: A mastiff dog fighting with another was stabbed in the chest by the master of his antagonist. Five hours after the accident, the Professor was sent for. On the exterior of the sternum was a laceration an inch and a half in length, covered by a spumy fluid, from the centre of which was heard a gurgling noise, showing that a wound had penetrated into the sac of the pleura. The respiration was quick, and evidently painful; the beating of the heart was also strong and precipitate. The finger being introduced into the wound, penetrated between the fourth and fifth rib on the left side. "Having arrived at the pleuritic sac," says the Professor, "I gently tapped the surface of the lung, in order to assure myself that it was not injured; my finger penetrated into the pericardium, and the point of the heart beat against it." He bathed the wound with a little diluted wine, and brought the edges of it as near together as he could, and confined them with a suture, administering a mild aperient.