282 CATTLE. 



imagined. The intruding substance will be dislodged from the situa- 

 tion in Avhich it was impacted, and will be brought to the upper part 

 of 'the oesophagus, or even into the pharynx, and will then be some- 

 times got rid of by the efforts of the beast itself, or may oe easily 

 drawn out by means of a hand introduced through the large mouth- 

 piece to which reference was made in the explanation of the oeso- 

 phagus-tube. 



If the obstructing body cannot be moved in this way, we are not 

 yet without resource. Mr. Read has made an important improve- 

 ment on, or addition to, the cesophagus-tube, in the form of a cork- 

 screw. Vide fig. 3, in the preceding cut, 



a. The leather tube, as before, but somewhat larger, ai.d longer, 

 and stronger ; and the upper part of it, for the purpose of additional 

 strength, composed of brass. 



h. The handle of the stilett, which runs through it, as through the 

 other tube. 



c. One of two pieces of wood placed between the handle and the 

 tube ; hollowed so as to fit the stilett ; removable in a moment, and, 

 like the hollow piece of wood in the other tube, permitting the stilett 

 to be two or three inches longer than the tube. They are here 

 removed, and one of them hangs down, suspended by a string. 



d. The bulb which is introduced through the mouth-piece, and 

 forced down the gullet. It is considerably larger than those at the 

 ends of the other tube, but not so large as the distended gullet. 



e. A corkscrew fixed to the end of the stilett, and which, coming 

 out in the centre of the knob, cannot possibly wound the gullet. 



When this instrument is used, the stilett is pulled up so that the 

 screw is perfectly retracted and concealed within the knob. The 

 pieces of wood, c, are placed upon the stilett, between the handle 

 and the top of the tube, and tied there, so that the screw is now fixed 

 within the knob ; and the instrument is introduced through the 

 mouth-piece, and forced down the throat until it reaches the obstruc- 

 tion. The pieces of wood are then untied, and, by turning the han- 

 dle, the screw is worked into the obstructing body, as the commoti 

 corkscrew is into a cork in the neck of a bottle. If the potato or 

 turnip be fresh and sound, it would hardly be credited what purchase 

 IS obtained, and in how many instances the nuisance may be drawn 

 up the throat and got rid of. If the centre of the root should give 

 way, and a portion of it only be brought out, there is still some good 

 done, and the screw should be returned again and again, until it will 

 no longer take hold. By this time, probably, the root will have been 

 80 weakened and broken down that it will yield to the pressure of the 

 first probang, and be forced along into the rumen ; or at least it will 

 be so weakened, that the stilett of the first tube may be used with 

 advantage. 



The stilett must he withdran from the tube, and the running piece 



