DISEASES OF THE BLOOD. 59 



that more of the former escape after exposure to infection 

 than of the latter. However, occasionally the incautious 

 use of a diseased carcass as food gives rise to severe 

 disease and high fatality in a whole pack. In the most 

 severe cases the animal falls dead, and no marked lesions 

 are found after death, but the blood is black and thick, 

 and the spleen enlarged. Generally some blood extra- 

 vasations and petechise of the serous and mucous mem- 

 branes are present, and yellow gelatinous material is 

 thrown out round the lymphatic glands, especially those 

 of the mesentery. Eougieux gives an interesting account 

 of an outbreak among foxhounds near Paris, which is 

 quoted in extenso in Fleming's ' Veterinary Sanitary 

 Science and Police.' The disease began as swelling of 

 the parotid (lymphatic ?) glands ; then a tumour, small 

 and round, occurred on some part of the head, rarely on 

 the body or limbs. Soon acute oedema of the tissues 

 around the tumour set in, and respiration was so interfered 

 with as to threaten suffocation. The skin covering the 

 tumour and the buccal mucous membrane became ecchy- 

 mosed and gangrenous, viscid saliva flowed from the 

 mouth, the fasces were mixed with blood. The disease 

 lasted seldom beyond five days, and death or improvement 

 was noted about the third day. We need not enter into 

 details as to the anthrax contagium and so on, for the 

 veterinary surgeon will apply his knowledge as gained 

 from experience of the disease in herbivora. Toussaint 

 ('Veterinary Journal/ xi, p. 150) reports the results of 

 experiments with his system of anthrax vaccination as 

 applied to the dog. He finds that young dogs from, birth 

 to six months old readily contract the disease from 

 simple puncture, and die with the blood laden with bac- 

 teridia, local and gland lesions being well marked. The 

 first inoculation causes slight fever, and in two cases he 

 found slight oedema at the seat of inoculation. All four 

 animals vaccinated resisted successive inoculations by 

 puncture. It is noteworthy that in the dog authrax is 

 very liable, when it does occur, to assume the form of 

 blebs or pustules in the mouth (which are probably the 



