2i8 Veterinary Medicine. 



the outer coat ; this is thickened by exudation and cell prolifera- 

 tion, especially in the nonstriated muscular fibres ; at intervals 

 this degenerates into pus, forming minute abscesses of the size of 

 a lentil to a pea, each with a thick outer coat ; the intervening 

 portions of the exudate are more or less absorbed, so as to leave 

 a series of peribronchial nodules (peribronchitis nodosa). These 

 are differentiated from glander nodules, by being all of one age ; 

 by their pallor in contrast with the reddish color of their section 

 in glanders ; and by the presence of a few drops of creamy pus 

 in the centre of each. 



It will be observed that the symptoms and lesions closely re- 

 semble those of broken wind (heaves), and unless early and suc- 

 cessfully treated, into this it gradually merges. The chief dis- 

 tinguishing symptoms are the abundance and nature of the dis- 

 charge, the fetor of the breath, and the presence of the mucous 

 rale in the chest. It is one of the conditions known by the horse- 

 man's expression " thick windy 



Treatment. I,ike its type (dilatation of the bronchia, bron- 

 chiectasis) in man this disease, obstinately resists treatment. In 

 our efforts to cure it the same general principles must be followed 

 as in acute bronchitis, with this grand qualification that the gen- 

 eral aim must be to stimulate and support. Stimulating liniments 

 may be repeatedly applied along the course of the trachea and on 

 the sides of the chest. An equable temperature is desirable and 

 a dry building. Water vapor medicated with various astringents 

 and antiseptics (creosote, carbolic acid, turpentine, tar, or tar 

 vapor) is to be commended. A course of tonic and expectorant 

 medicine is desirable and a highly nutritious and laxative diet is 

 imperatively demanded. 



As tonics Gentian may be given daily in 4 drachm doses com- 

 bined with quaiacum in doses of 2 scruples, or salammoniac 2 

 drachms. In most cases it will be advisable to add to the above 

 or employ separately arsenious acid in doses of 5 to 10 grains 

 combined with three times the amount of bicarbonate of soda, 

 and given daily for a month or longer. When the cough is dry 

 and husky iodide of potassium or chlorate of potash may be use- 

 ful, while with profuse expectoration, wild cherry bark (syrup) 

 may be resorted to. 



The diet should be as for broken wind, nutritious, in small 



