628 DISEASES AND THEIR TREATMENT. 



The Rowel. 



Rowels are used as counter-irritants in treating deep-seated in- 

 flammations ; and whenever any morbid disease is to be stopped, as 

 in grease and in thrushes, they have long been favorite remedies 

 among horsemen. 



In applying a rowel, the skin is to be taken up between the 

 finger and thumb, and a cut is made in the skin with the roweling 

 scissors, and with the hook on the handle of the scissors, it is sep- 

 arated from its cellular connections for about two inches, and a dos- 

 sil of tow, or a circular piece of leather, with a hole in it, previously 

 dipped in digestive ointment, is inserted, which must be cleaned and 

 moved every day. A discharge is soon set up, which has a tendency 

 to remove any deep-seated, morbid action. 



Tracheotomy. 



It sometimes happens that from the tumefaction of strangles, 

 the impaction of foreign bodies, and other sudden causes of obstruc- 

 tion, the life of the patient is threatened from suffocation. It is 

 found necessary to open the windpipe to avert the untoward result, 

 until the cause of the obstruction be removed. 



It consists in making an incision through the skin and muscles 

 in the mesian line down on the trachea, or windpipe, cutting through 

 two rings of this tube, and inserting a bent tube, which is usually 

 made of block-tin, with a broad flange, to which tapes or straps are 

 attached to tie it round the neck. It is usually employed to give 

 temporary relief; but I have known horses to work with a tube in 

 the windpipe for years. It must be frequently taken out and 

 cleaned. When the cause of the obstruction is removed, the tube is 

 withdrawn, and the edges of the skin being scarified, they are care- 

 fully brought together, and treated as a simple, wound. 



Embrocations 



are external applications in a liquid form, that are rubbed on a dis- 

 eased part, as in strains and indolent swellings, and as an auxiliary in 

 the treatment of internal inflammation. They are of a stimulating 

 nature, and greatly assisted by friction. Of this kind are opodeldoc, 

 soap liniment, etc. 



EMBROCATION FOB HARD, INDOLENT TUMORS. 



(No 1.) Olive-oil , 4 oz. 



Camphor .* 4 dr. 



Mix. 



