— 303 — 



Water in the chest is removed by introducing an instrument 

 (see Instruments) called a tro-^ar, but sornewliat smaller than the 

 one used for haven in cattle. Also it is removed b}^ absorption and 

 by diuretics (whicli see). 



Dysentery. — (See Diarrhoea.) 



Ear Diseases. — (1.) Small Tumors. — Sometimes tumors of 

 various shaj)es and sizes are seen in the ear of the horse, producing 

 a kind of canker in that organ. 



Symptoms. Shaking of the head ; will not let much familiarity 

 be made with him ; running or starting back, when the collar or 

 bridle is being taken up over the ears. 



Causes. Irritation and inflammation of the skin of the ear, 

 producing small pimples of proud flesh. 



Treatment. Removal with the knife, scissors, or caustic; then 

 apply the simple ointment as for a simple sore. (See Prescription 

 in Medicine List.) 



(2.) Injuries of the Ear. — Injuries to the ear take place from 

 the use of the whip, the bite of a dog, or from another horse 

 biting it. 



Treatment. Treat as for a common sore, by simple ointment and 

 by cleanliness. 



(3.) Deafness. — Not often observed in horses. 



(4.) Foreign Substances in the Ear. — Remove them by the 

 forceps. 



(5.) Abscess in the Eau. — Treatment as for Abscess (which see). 



(6.) Dry Gangrene in the Ear. — Two cases of this affection 

 have been brought to my notice, in which the concha of the ear 

 had dried up, withered, and dro]~)ped off. 



Ecchymosis. — Black spots observed on the lungs of cattle and 

 horses having died from ]^leuro-pneumonia. 



Eczema. — (See Mange.) 



Elephantiasis. — A name applied to a swelled leg. (See 

 Grease.) 



Embrocation. — A term applied to liniments. (See Prescrip- 

 tions.) 



Emetics. — Medicine, often taken into the stomach of man and 

 some animals, causing them to vomit. Tlie horse, ox, and sheep 



