768 



DISEASES AND THEIE TEEATMENT. 



much inflammation as to cause the skin to break or slough between 

 them. Tlic average distance apart is from three-fourths to one 

 inch for the larger iron, and half an inch for the smaller iron, ob- 

 serving not to go near the vein. 



If the horse is valuable it is best to use the smaller iron, as there 



Fig. 667.— Small Pyro- 

 puncturing iron. 



Fig. 668. — Lai-ge Pyro- 

 puncturing iron. 



Fig. 669. — Small Pyro- 



puncturing iron. The 



wire represented too small. 



is less danger of blemishing. The part of the iron used should be 

 sufficiently long to enable puncturing as deep as desirable. I give 

 illustrations of two such irons; one representing the round part 

 drawn out with considerable bulb behind to give sufficient body 

 to retain heat; the other a bulb of iron with a hole punched, into 

 which is fitted a piece of steel or iron wire of suitable size. These 



