432 



DISEASES AND ~THEIR TREATMENT. 



Second, when it has been long neglected, or the case is com- 

 plicated, counter-irritation or any good stimulating liniment or 

 light blister may be used. The biniodide of mercury ointment may 

 be well rubbed in several times, or a cantharides blister may be 

 used. 



Third, letting the synovial fluid out. This is done with an 

 instrument called " the aspirator,' 1 which is a bottle attached to a 

 small suction-pump, or more properly, a syringe attached to a 

 bottle, and worked so as to draw out the fluid. The method of op- 

 erating is as follows : Force the needle of the aspirator into the 

 wind-gall, and draw off" the fluid. When it is all drawn, inject a lit- 

 tle of the following solution into the part :— 



Tinct. iodine '.'..' } oz. 



Iodide of potassium , v .... 20 gr. 



"Water . . . ,8 oz.. 



Bandage well' and keep the parts wet with cold water, the 

 bandages to remain on from three to five days. This produces an 

 adhesive inflammation of the part. This treatment can be used 

 with safety in all cases where there is enlargement of the sheaths 

 of the tendons. It cannot be safely used in what is called a blood 

 spavin, because there is danger of puncturing the vein, and sec- 

 ond, may extend* into the true hock joint, which would induce so 



much inflammation as to produce 

 a stiff joint or even suppuration 

 of the coverings of the bone, 

 which would finally destroy life. 

 The hypodermic syringe> shown 

 -£^' ; %HL m Fig. 745, may be used. 



Navicular-Joint Lameness. 



It is estimated that this is the 

 cause of fully nine tenths of all 

 serious and obscure cases of 

 lameness In the fore feet. If 

 neglected or not treated prop- 

 erly, in from three to six months 

 ~ such changes of structure, or de- 



generation, take place in the 

 Fig. 746.— As the Horse Usually Rests his parts as to make cure impos- 

 Toe upon the Ground. sible, when it is termed " groggy, 



or chronic lameness." In refer- 

 ence to the cause of this lameness, a very able author says : — 



