THUMPS; 



531 



trig from derangement of the digestive organs, will show some tem- 

 porary jerking of one or both hind legs, from which they recover 

 under good keeping and mineral tonics. The writer , has never 

 known a case of stringhalt to be cured. There are a great many 

 theories and pretended cures, but I know of none worthy of 

 mention. ( 



Thumps, or Spasmodic Action of the Diaphragm, 



commonly called thumps, is caused by severe and long-contin-; 



Fig. 841.— The Circulatory Apparatus Indicating the Position of Heart, Arteries, and Diaphragm. 



ued driving and hard work. Horses of a nervous temperament hav- 

 ing too much cold water given to drink on a cold morning, nervous 

 irritation, severe work or excitement from' any cause, may excite 

 this trouble. 



Symptoms. — A sudden jerking or twitching of the muscles of the 

 sides and flanks ; pulse wiry, quick, and low ; more or less fever ; 

 extremities natural. 



Treatment.— This disease being of a purely spasmodic character, 



