AND CATTLE DOCTOR. 169 



cient length may then be introduced into the wound,* 

 and remain there until the air is sufficiently evacuated ; 

 afterwards take out the tube, and lay a pitch plaister 

 over the orifice. Wounds of this kind are seldom at^ 

 tended with danger ; when it has arisen, it has been 

 occasioned by the injudicious operator introducing hia 

 knife into the wrong part. After the wind is expelled, 

 and the body has been reduced to its natural state, let 

 a cordial drench be given. 



Dr. Monro, Professor of anatomy at Edinburgh, in- 

 vented an instrument, which was intended to answer 

 the same purpose with the invention of Mr. Eager, 

 above mentioned. It consists of an iron wire about 

 one sixteenth of an inch in diameter, twisted round a 

 rod three eights of an inch in diameter, and made of 

 polished iron, in order to give it a cylindrical form; 

 the wire, after being taken off* the rod, should be cov- 

 ered with smooth leather. 



To the end of the tube, which is intended to be 

 passed into the stomach, a brass pipe two inches lon^, 

 of the same size, or rather bigger than the tube, is to 

 be firmly connected ; and to prevent the tube from 

 bending too much within the mouth or gullet, an iron 

 wire, one eighth of an inch in diameter, and of the 

 same length as the tube, is put within, but afterwards 

 withdrawn, when the tube has entered the stomach, as 

 Dr. Monro has ascertained that the distance from the 

 fore teeth to the bottom of the first stomach of a large 

 ox, is about six feet, the tube ought to be at least two 

 yards long, that it may operate efliectually in the lar- 

 gest oxen. When the instrument has been introduced 

 into the stomach, it may remain there for any length 

 of time, as it does not obstruct the respiration of the 



* This may be of elder, sumach, or a turkey, or goose quill. 

 15 



