Contagious Pneumonia in the Horse. 141 



4 drs. ), caffein, or alcohol. Care must be taken not to overstimu- 

 late and exhaust a weak and intermittent heart. 



Derivatives are often of material value from the first, in mild 

 cases or to succeed damp compresses in the more violent ones. 

 One of the best and most convenient is essential oil of mustard 

 and alcohol (1:12 or 20). This may be rubbed on the surface 

 and like mustard itself, covered with stout paper to prevent 

 evaporation. In the absence of this, soap liniment, or ever tinc- 

 ture of cantharides may be used. 



The use of antiseptics has been tried with variable results. 

 While it is impracticable to saturate the system, safely, with sufi&- 

 cient antiseptic to destroy the microbes in the blood and tissues, 

 yet when the balance of force between the microbian attack 

 and systemic defence shows little variation either way, a 

 slight increase on the side of the patient may serve to give it the 

 preponderance, and to restrict the increase of the microbes and 

 their products. Above all when the center of morbid activity is 

 largely on and near the bronchial mucosa, antiseptic inhalations 

 serve to hold them somewhat in check and to moderate the 

 amount of both microbes and toxins that enter the system at this 

 point. For this purpose camphor, oil of turpentine, or oil of tar 

 volatilized from hot water may be inhaled in a close room. Or 

 we may use carbolic acid, terpene, terpinol, creolin, lysol, thymol, 

 eucalyptol, or oil of cinnamon. The fumes of burning sulphur 

 diffused in the air of the room and just short of that concentra- 

 tion that will cause cough, suffering and headache, is an excellent 

 re.sort. The sulphites, bisulphites or hyposulphites may be 

 given by the mouth. 



When there are indications of encephalitis, cold to the head 

 and the internal exhibition of bromides, iodides, and acetanilid 

 may be resorted to. 



During convalescence, nourishing and easily digestible food 

 may be given, and iron, strychnia, quinia and common salt may be 

 employed. In protracted or chronic cases with foetid breath and 

 indications of sequestra or opened vomica in the lungs these may 

 be continued along with one or more of the disinfectants referred 

 to above. 



Prevention. This is much more promising than in equine in- 

 fluenza. The extension of incubation to three days and the 



