DR. LEGEAR'S STOCK BOOK. 157 



Treatment. If it is in connection with fistula or poll-evil, cut 

 down upon the parts and remove all diseased portions of bone 

 with a bone spoon or pair of bone forceps, and cleanse the ends 

 of the bones with peroxide of hydrogen applied full strength 

 twice a day. If the decay of bone is in a joint, a good stimulating, 

 penetrating blister should be applied, and there is nothing equal 

 to our Spavin Cure (see Appendix) in these cases. 



NECROSIS. 



This simply means death of bone. It is not very common in 

 the lower animals, and when it does take place it is generally 

 due to some injury. After a bone dies it looks real white, and it 

 seems to be harder than natural, and finally, becoming exposed 

 to the air, it crumbles, separates, and comes away. Necrosis is 

 seen in connection with the lower jaw, caused by the action 

 of the bit. When a portion of bone dies it must be got rid of in 

 some way; if nature fails to remove it, surgical means must be 

 employed. 



Symptoms. After necrosis takes place a kind of material is 

 thrown out which covers the dead portion to a certain extent. 

 After a while a discharge from the affected parts takes place 

 and an abscess is formed, at which time the dead bone is sep- 

 arated from the living, etc. The discharge from decayed bone is 

 very offensive. 



Treatment. Enlarge the opening with a sharp lance and with 

 a pair of forceps or tweezers remove any dead portions of bone 

 that are present. Thoroughly syringe out the cavity with clean 

 water and carbolic acid, 1 to 40. Then wash out the cavity 

 every morning with clean water and inject peroxide of hydrogen, 

 which will cleanse and heal the bone. 



