SPASM OE THE LAETNX. 253 



animal, have recourse at once to Tracheotomy ; it wiLl imme- 

 diately alleviate the condition of the patient, and afford time 

 for the application of other measures. If the affection pro- 

 ceeds from Laryngitis, Strangles, or Ahseess of the neck, or of 

 the lymphatic submaxillary glands, treat the patient afterwards 

 according to the principles laid down ia the present volume, 

 with regard to the diseases in question. 



Where the spasm, however, arises from hidden causes, a 

 careful examination should be made to ascertain their nature. 

 The iuterior of the mouth should be explored for Tumours, 

 Abscess, or the lodgment of foreign bodies within the mucous 

 membrane. Especial care and attention should be given to the 

 examination of the root of the tongue, the laryngeal opening, 

 and the structures contiguous. 



The most puzzling cases to a practitioner are those where 

 the spasm arises from the presence of incipient Abscess, or 

 Abscess situated low down in the trachea. A case of this 

 nature once occurred to the writer of the present treatise; 

 and as it is one of a very instructive character, I refer the 

 reader who may desire to peruse the details, to the Veterinarian 

 for 1850, pages 423 to 426. 



In the same journal for 1845, page 557, a case of incipient 

 Abscess of the laryngeal region is related by Professor Dick, 

 which is not only of a very rare, but also of a highly interesting 

 character to the professional reader. 



BEONCHITIS. 

 Bronchitis is frequently prevalent as an epidemic disease, 

 or it may exist in a sporadic form. It is seldom, however, that 

 it exists in a pure form, or unassociated with other maladies 

 affecting the structures contiguous to the bronchial tubes. 

 The substance of the lungs — the mucous membrane lining the 



