DISEASES OP SHEEP. 61 



left side, the animal to be put in a sitting position. An 

 assistant must be at hand to keep the animal quiet and 

 fast during the operation by grasping the neck of the same 

 with his right hand, and to hold its back straight with his 

 riglit leg. The operator now seizes with his left baud the 

 right ear of the animal, bending the ear over his fore 

 finger, and keeping the same between his thumb and fore 

 finger in such a position that the inner side of the ear 

 is exposed and ready for vaccination. The skin is now 

 pierced with the needle and the vaccine-matter introduced 

 in the same manner as in the so-called tail vaccination. 

 The animal may also be held in a different manner; the 

 assistant seizing the same by its back and leading the 

 animal with its head between the knees of the operator. 

 In both kinds of vaccination all other proceedings are of 

 the same description. Under all circumstances it is advis- 

 able cautiously to introduce the needle under the upper 

 skin and not deeper, otherwise a vehement inflammation 

 or gangrene may ensue and the life of the animal en- 

 dangered, as has been observed in several cases. It is, 

 however, admitted that such cases are very rare, and we 

 only mention such occurrences as a reasonable precaution. 



Process of the vaceijiated pox. — On the second day after 

 vaccination the small wound generally disappears, pro- 

 vided the incision or cut is not very deep. On the third 

 day a red point appears, forming a small knot, which is 

 now growing larger and becoming painful. On the sixth 

 _or seventh day fever of a more or less vehement, but 

 generally of a gentle nature, ensues. Sometimes it happens 

 that upon other places beside the vaccinated spot pox ap- 

 pears ; and in such cases the animal is affected with all the 

 sufferings incident to natural pox of irregular form. On the 

 eighth day the pox is largely extending, until on the tenth 

 or eleventh day it has arrived at its full dimensions, being 



