200 DISEASES OF THE HOG. 



with one or two drams of spirits of nitrous ether, 

 diluted with a little water. Thirty drops of turpen- 

 tine given in some mucilaginous substance three 

 times a day is useful. Arbutin, in ten to twelve 

 grains at a dose, three times a day, given in a des- 

 sertspoonful of glycerine or cod liver oil, is of great 

 service in some cases. The tincture chloride of 

 iron in dram doses three times a day in a little 

 syrup is especially useful on account of its action 

 on the urinary organs. If there is any hemorrhage 

 give from five to ten drops of the oil of erigerontis 

 in syrup three or four times a day. Feed the pig 

 on boiled flaxseed, oatmeal and milk. 



VESICAL RETENTION. 



Retention of urine in the bladder is caused by 

 some obstruction to the passage or inability of 

 the walls of the bladder to contract on its con- 

 tents. Obstruction may arise from inflammation 

 of the mucous membrane at the entrance of the 

 urethra. It may arise from spasms of the neck of 

 the bladder. Other causes are tumors, stones, ac- 

 cumulations of mucus and stricture of the ure- 

 thra. 



Symptoms: The animal is making constant in- 

 effectual efforts to pass urine and is in great dis- 

 tress. On examination of the back part of the ab- 

 domen, just in front of the pubis, a tumor will be 

 felt, forming a somewhat round, well-defined tu- 

 mor, and it is sometimes visible. In very fat pigs it 

 may be difficult to feel in this locality; in such a 

 case the dnlness upon percussion over the region 



