190 The Farmer's Veterinary Adviser. 



excessive plethora, overexertion, disease of the heart oi 

 tuberculosis. If ia limited quantity, the blood comes from 

 the nostrils and mouth of a light red and frothy and with 

 coughing. If in greater amount it may fill the bronchial 

 tubes and cause death suddenly by stiffocation without 

 much escape by the nose. 



Treatment. When brought on by severe exertion per- 

 fect rest and quiet will check. Keeping the head elevated, 

 cold appHed to the head and neck, iced drinks acidulated 

 with vinegar or mineral acids, are useful. Opium benefits 

 by checking the cough, and in obstinate cases acetate of 

 lead, ergot of rye, matico, tincture of muriate of iron, or 

 oil of turpentine may be given internally three times a 

 day. Remove costiveness with Glauber salts and keep in 

 a cool airy place at rest for at least a fortnight. 



PAEASITES IN THE UPPEE AIB PASSAGES. 



The Gbub in the Head of Sheep is the larva of a smaD 

 gadfly (CEstrus Ovis) which deposits the hve embryo on thf 



Eig. 12. Fig. 13. 



Fig. 12— CEstrus ovis, Clark. Fig. 13 — Larva of ditto. 



margin of the nostril, whence it creeps up into the nasal si 

 uuses. It stays there during the winter and spring, often 

 proving harmless but sometimes causing much irritation, 

 redness of the nostrils, and a white, muco-purulent dis- 

 charge, with dullness and stupor from sympathetic disease 

 of the brain. To prevent the attacks of the fly the sheep 

 should be fed salt from two-inch augur holes bored in a 

 log, the surface of which is smeared with tar, so that they 

 get a dressing every time they partake. A less satis- 



