2ig 



a crackling, hissing sound is also to be heard in the lungs. Treat- 

 ment is of little avail, but a cough ball may be given every night 

 for a week (see Appendix) ; but from two or three grain doses of 

 arsenic once a day for ten days or a fortnight given in a mash 

 answers best (sec Appendix). 



517. Formerly, unprincipled dealers used to practise all sorts of 

 tricks in selling an anmial thus affected — such as pouring one or two 

 pounds of lead shot, with a pound of melted butter, down the horse's 

 throat. This weighed the stomach down, taking the pressure off the 

 diaphragm, and thus allowed the lungs more play, when the horse 

 breathed almost naturally. Another practice was to cut a hole into 

 the abdominal cavity, close to the rectum, when the air being allowed 

 access, rushed in, and had the effect of assisting the breathing, and 

 this also seemed to have a controlling action on the double breathing. 

 I have seen a few cases of this type in the early part of my professional 

 career, but they are rare now-a-days. 



518. Influenza is a fever of an Epizootic type, and may be regarded 

 as a morbid condition of the blood, with a specific character, varying 

 very much in degree, according to the nature of the attack and, the 

 condition of the patient. Some cases are very slight, while others are 

 of a more virulent type, being accompanied by great prostration and 

 general debility. Influenza in the horse has an incubative stage of about 

 four or five days, and the duration of an attack varies from ten days to 

 even twenty days. It is of a very infectious nature and usually follows 

 in the wake of traders in horses, all classes of horses being subject to its 

 influence. It makes itself manifest in four different forms, such as — 

 (ist) Simple Catarrhal Fever; (2nd) Catarrh, with Chest 

 Complications; (3rd) Catarrh, with Bilious Fever; and (4th) 

 CEdematous or Exudative Cellulitis, recognisable by the swollen 

 limbs and eye-lids. 



519. Simple Catarrhal Fever resembles very much simple Cat- 

 arrh or common cold, (pav. 490). The symptoms are somewhat 

 analogous, and similar treatment may be adopted. 



