AND HIS DISEASES. 133 



of the nose (sclineiderian) is altered in colour ; it becomes of 

 a pale leaden hue, but does not exhibit ulcerative patches 

 as in glanders. The discharge may vary both in quantity 

 and quality. It is often retained for some time within the 

 sinuses, and comes away in considerable quantities. In other 

 cases the,' discharge is continuous, and collects about the 

 nostrils ; the submaxillary gland, in cases of long standing, 

 becomes tumefied, but not adhering to the bone as in glan- 

 ders ; the frontal and nasal boneS are affected, and present 

 an enlargement or bulging out over the seat of the disease. 

 If tapped with the point of the finger, a dull heavy sound is 

 produced, showing that matter has collected within the sinus. 

 In ordinary cases it is a long time before it materially afi'ects 

 the hor^e in his working capacity. When the bones are 

 greatly diseased, and the matter collects within the nasal 

 sinuses, it interferes with respiration, causing laborious 

 breathing. We have met with cases, owing to the excessive 

 obstruction in the air-passages, in which it tvas necessary to 

 open the windpipe (tracheotomy) before we could with safety 

 cast the animal to operate for nasal gleet. . 



Treatment. — Although a formidable disease, even the worst 

 of cases may recover if properly treated. Give good food 

 and moderate exercise, sponge the nostrils with tepid water, or 

 steam the head once or twice a-day, and administer mineral 

 or vegetable tonics, as. 



Sulphate of copper, ... 3 ounces, 

 Powdered gentian, ... 1 ounce, ' 



made into tw^ve pciwders, and one given in the food morning 

 and night. Or, the sulphate of iron, ia two-drachm doses 

 twice a-day. The nasal cavities maybe injected with a weak 

 solution of sulphate of zinc or of alum ; or of sulphate of 

 copper, about five grains to the ounce of water. When the 

 bone is diseased, and, matter collected within the sinuses, it 



