DISEASES OF THE HOG. 61 
a sixth of a grain of pilocarpine dissolved in a little 
warm waterand administered hypodermically will 
sometimes overcome obstructions. Coal cinders 
should never be given to pigs. Charcoal and wood 
ashes are safe, or better still, twenty pounds of 
sifted coal ashes, six pounds common salt and one 
» pound superphosphate of lime, mix these well to- 
gether and put‘into a trough in a convenient place 
so that the pigs can get at it when they want it. 
STRICTURE OF THE RECTUII. 
When there is great straining and difficulty in 
evacuation stricture of the bowel may be suspect- 
ed, and it is only after an examination that the 
cause is found. There are several things which 
may happen to the bowel which would prevent 
wholly or partially the evacuation of the feces. 
First, thickening or other organic derangements of 
the coats of the bowel; second, prolapsus of the 
rectum; third, hard tumors and spasmodic stric- 
ture. 
Symptoms: This affection is usually consider- 
ably advanced before it is noticed, when there will 
usually be constipation, with severe and painful 
efforts to evacuate, and nothing but a small quan- 
tity of mucus will pass. When these symptoms 
are present no time should be lost in ascertaining 
the nature of the derangement. The finger should 
be oiled and introduced; if the cause is beyond the 
_reach of the fingers a bougie should be used. When 
it is discovered what the ailment is it should be 
