POISONS. 



145 



without a churcli, or gymnasium. In this connection, I 

 am sorry to say, that our American authors on animal 

 diseases, have copied too closely from European practice, 

 which is utterly unfit for this country, climate and the 

 constitution of all our domestic animals. 



Pleurisy, — Inflammation of the serous membrane 

 covering the lungs, and lining the sides of the chest. 

 (See Lung Diseases.) 



Pleuro-pneumonia. — Inflammation of the covering 



and substance of the lungs. 



Pleurodynia. — This is a rheumatic afi'ection of the 

 intercostal muscles, and diff'ering from pleurisy, from 

 there being no constitutional disturbance, little fever, 

 and no inflammation, and is treated with a dose or two 

 of the tincture of aconite root given internally, and mus- 

 tard and a little vinegar rubbed into the muscles of the 

 sides, behind the shoulder. 



Plethora. — Fulness of blood. (Sec Obesity.) 



Pneumonia. — Inflammation of the lungs, (which 

 see.) 



Poisons. 



Poisons act in a variety of ways in destroying life, 

 and are derived from the organic and inorganic king- 

 doms, and their eff'ects are either local or remote. Poi- 

 sons may be taken into the stomach, inhaled in the form 

 of sulphuretted hydrogen, and from the skin as from the 

 bite of a poisonous animal, or absorbed from wounds. 

 (See Glanders.) Poisons act in one of three ways: 



1.) Irritant Poisons are those poisons the symp- 

 toms of which are inflammation, irritation, and pain. 

 Examples — arsenic, bi-chloride of mercury, lead, baryta, 

 copper, and the Spanish fly. 



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