84 MANUAL OF EQUINE MEDICINE. 



formation of abscesses in the lungs. Also other special 

 symptoms, due to the formation of abscesses in particular 

 organs, are frequently manifested. The skin may be jaun- 

 diced, and show petechial markings. In cases following 

 wounds, the latter, a few days after infliction, show ab- 

 normal changes. 



Infiltration, leading to oedema and gangrene of the 

 surrounding connective-tissue, comes" on, and the wound 

 discharges an unhealthy ichorous matter, and gases accu- 

 mulate in the subcutaneous tissue. When pyaemia accom- 

 panies the specific fevers, it usually first shows symptoms 

 after the acme of the fever has been passed. 



Prognosis of Pyaemia. — This disease is generally fatal. 



Treatment. — Allow plenty of fresh air, and a liberal and 

 nourishing diet. 



The drugs which are specially recommended are — quinine, 

 arsenic, salicine and salicylate of sodium, and iron. Alcoholic 

 stimulants are, no doubt, of great value in the treatment of 

 pyaemia. 



Carbolic acid has also been recommended in moderate 

 doses. If there be any wound, it should be carefully 

 attended to, and well dressed with antiseptic lotions. 



SURRA. 



Surra is a disease widely spread in India. The name 

 * surra' signifies ' rotten,' and the disease is so termed from 

 the great emaciation occurring in animals afi'ected with it. 

 Our knowledge of this malady is due to the members of the 

 profession residing in India— especially to Mr. Griffith Evans, 

 of the Army Veterinary Department. 



Definition. — Surra is an enzootic disease, due to the pre- 

 sence of a special animal parasite in the blood, and charac- 

 terized by progressive emaciation, dropsical swellings. 



