RHINITIS. CORYZA. NASAL CATARRH. COLD IN 



THE HEAD. 



Coryza in the horse : Causes, wet, cold after perspiration, damp climate, 

 stable, soil, new buildings, hygroscopic building materials, youth, age, 

 poverty, nervous sympathy, local irritants, iodine, specific disease poisons. 

 Symptoms, dry congestion, watery discharge, muco-purulent discharge, 

 eyes involved, chill, fever, circulatory and breathing disturbance, defeca- 

 tion, urine, glandular swelling. Inflammation of the sinuses, the severe 

 effects. Duration in slight cases, in severe, in sinus complication. Treat- 

 ment, hygienic, nursing, dietary, steam, sulphur dioxide, febrifuges, in- 

 sufflation, electricity, solvent, antiseptic, stimulant. 



Under this head will be considered simple inflammation of the 

 nasal mucous membrane. This disease might be considered as a 

 mild febrile affection with the local manifestation in the nose, but 

 it is more convenient to treat of it here as a malady of the nasal 

 chambers. 



CORYZA IN THE HORSE. 



The chief causes axe exposure to wet and cold and especially 

 when the subject is exhausted and the skin relaxed and covered 

 with perspiration. In these circumstances a piercing wind, a 

 cold drizzling rain, or a draught in the stable is particularly dan- 

 gerous. Sudden alternations of temperature and especially a 

 change to a warm stable when the general effect is aggravated by 

 the impurity of the atmosphere and the irritant emanations from 

 dung and urine. Damp climates are more injurious than those 

 that are clear, dry, and bracing, and equally so are damp stables 

 whether the moisture is due to the nature of the soil, such as a 

 cold impervious and undrained clay, or of the building which, 

 from its newness may retain a dangerous amount of moisture in 

 the plaster or because of the hygroscopic properties of the build- 

 ing materials which draw moisture from the surrounding soil. 

 It mainly attacks young horses after they have passed out of the 

 hands of the breeder or dealer, and have been placed in new con- 

 ditions of life alike as regards feeding, stabling and work. Old 

 and ill-conditioned animals are more susceptible than the strong 



6 



