General or Sporadic Diseases. i g i 



CHAPTER XVII. 

 GENERAL OR SPORADIC DISEASES. 



Catarrh- Laryngitis, or Sore Throat — Congestion of the Lungs— Bronchitis- 

 Pneumonia — Inflammation of the Lungs — Pleurisy— Roaring, Whistling. 

 Grunting, &c— Chronic Cough— Nasal Gleet— Spasm of the Diaphragm 

 — Rupture of the Diaphragm. 



The affections comprehended in this classification are 

 those which have no origin in specific animal or other 

 poisons, and are, therefore, entirely distinct in their nature 

 from any already under review. Neither do they depend 

 upon the operation of widespread causes. As a rule, few 

 animals, generally not more than one among a given 

 number, are affected, and the cause is usually traced to 

 local causes. For the sake of clearness they are grouped 

 according to the class of organ affected, from which they 

 derive their distinctive characters. 



DISEASES OF THE ORGANS OF RESPIRATION. 



Catarrh, otherwise known as Coryza or common cold. 

 This simple affection consists of inflammation of the lining 

 membrane of the eyes, nostrils, and sinuses of the head ; 

 sudden alternations of temperature, defective ventilation of 

 stables, unusual exposure to wet and cold, and excessive 

 or uncalled-for use of depletive medicines, being among 

 the fertile causes. The membranes referred to are at first 

 dry and deeply coloured, and afterwards secrete, first a 

 thin, transparent, watery fluid, which shortly becomes 

 thick, opaque, of a cream colour, and often profuse. A 

 fit of rigors or shivering usually ushers in the attack, and 

 symptomatic fever is also prominent. Slight cases recover 

 rapidly as soon as a discharge is established, providing 

 other circumstances are equal ; but continued operation 

 of the original causes induce complications in the form of 

 disease of other organs. 



