INJECTION OF FLUIDS INTO THE NOSE. 545 



the nose. Professor Eey has adopted a very simple and 

 satisfactory procedure. It consists in causing the fluid to 

 rise in each nasal chamber by atmospheric 

 pressure, and when the one division of the 

 nose is thus filled, the liquid passes over the 

 septum, and is seen to flow out at the oppo- 

 site nostril. In this way the liquid most 

 effectually touches every part of the schnei- 

 derian membrane, and a mild solution of sul- 

 phate of zinc or copper, and other sedative, 

 astringent, or antiseptic lotion, may be 

 brought in contact with the suppurating 

 or ulcerated surface. The instrument which 

 Professor Eey employs for this purpose, and 

 the advantages of which I have fully ex- 

 perienced in practice, is drawn at Fig. 1 38. 

 The long tube is fifteen inches in length, 

 and one and a-half inches in diameter, 

 expanding and funnel-shaped above, where 

 the broadest part is two inches wide. The 

 short arm is five inches in length, and the aperture two 

 thirds of an inch in diameter. Over the short arm is passed 

 a closely-fitting leather ring, 4J inches in diameter. This 

 serves as the surface over which, and round the short arm, 

 wet tow may be adapted, so that, on introducing the small 

 tube in the nostril, the latter is compressed carefully on 

 the tow ; at the same time fluid is poured into the fun- 

 nel, and rises in the nasal chamber. If the horse's head 

 be bent in, and held as much as possible in a perpen- 

 dicular position, the lotion will pass out at the opposite nos- 

 tril. We sometimes have a little difficulty in performing 

 this operation with awkward horses, but by quiet means I 

 have always seen them accustomed to the operation. Some 



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