Diseases of the Respiratory Organs. 39 



three or four drops of spirits of camphor. If no relief at- 

 tends these measures, five grains of iodide of potassium 

 and five minims of tincture of belladonna given in a desert- 

 spoonful of water will frequently be found effectual in re- 

 laxing the bronchial spasm. Idoform 2-4 grains and 

 chlorodyne 7-12 minims are also useful. When the attack 

 occurs after a meal an aperient is indicated. 



The instructions given for the preceding form regarding 

 diet will apply to spasmodic asthma. Overloading the 

 stomach and exertion after a meal, should specially be 

 avoided. 



PLEURISY, 



Or inflammation of the investing membrane of the lungs, 

 and that lining the thoracic cavity, may be associated with 

 pneumonia (pleuro-pneumonia) or exist as an independent 

 disease. 



Predisposing Causes.- — Debility, disease of the lungs, or 

 any of the predisposing causes of inflammation. 



Exciting Causes. — Cold ; inflammation of neighbourihg 

 textures ; injuries, as fracture of or wounds penetrating be- 

 tween or external to, the ribs. 



Symptoms. — These generally commence with shivering 

 and febrile disturbance ; respiration quickened ; the in- 

 spiration is remarkably short, being suddenly interrupted 

 almost immediately the breath is taken ; this is due to the 

 pain caused by the movement of the ribs in dilatation, or 

 the inflation of the lungs on and against the pleura ; the ab- 

 dominal muscles are in consequence called in to aid respi- 

 ration, hence the bellow-like heaving movement at the 

 flank. There is a dry suppressed cough,^ and the usual in- 

 dications of fever ; nose hot and dry, tongue white and 

 slimy, eyes bright and watery, conjunctival membrane in- 

 jected, pulse hard, jerking, and frequent. As these symp- 

 toms advance, the animal becomes exceedingly distressed 



