ROARING IN HORSES. 



seldom seen ; it is nearly always unilateral, 

 and generally affects the left side. When it 

 follows irritation of the bronchial tubes or 

 lungs, the laryngeal hemiplegia is the result 

 of inflammation of the inferior laryngeal 

 nerve of the same side or pressure on it 

 by the hypertrophied bronchial glands ; the 

 diversity of relations of the recurrents as 

 they leave the pneumogastrics fully accounts 

 for the localisation of the laryngeal altera- 

 tions. When it appears without having 

 been preceded by a bronchial or pulmonary 

 affection, it is due either to hereditary 

 cause or to an accidental injury to the 

 recurrent or pneumogastric nerves. 



It is simply necessary to give a glance 

 at the upper part of a larynx affected with 

 hemiplegia to judge of the deformity which 

 that organ has undergone. The orifice, 



