178 BONE-SPAVIN, RING-BONE, &C. 



This last we have found a most excellent blister 

 in all concrete substances of these kinds, parti- 

 cularly those of splints and bone-spavins. 



Either of the two must be worked in with the 

 t-patula, by a little at a time, for half an hour to- 

 gether, and repeated every morning for four or 

 five times. After the first time of using the oint- 

 ment, it will only require to be spread on, and a 

 small bit of hog's lard may be rubbed round the 

 edge, to prevent it from spreading any further. 

 When this treatment is finished, and the part has 

 ])ecome dry, the following blistering charge may 

 be applied to advantage. 



(RECIPE, No. 137.) 



Take — White pitch, and black pitch, of each four 



ounces ,* 

 Common plaster with gums, two ounces ; 

 Oxycroccum plaster, and strengthening plaster, 



of each one ounce ; 

 Cantharides, and euphorbium, in powder, of 



each two drachms ; 

 Dissolve the plasters together, then add the two 



last, and stir them all well together. 



This charge must be spread on the part just 

 before it sets, and a flannel, or some short wool, be 

 immediately applied over the whole. In the course 



