SH MATERIA MEDiCA. 



twenty or thirty, and continued as long as 

 there is occasion. In experiments on glan- 

 dered liorses, I have seen a dose of two 

 drams given twice a day, and continued for 

 a week : at which period it produced in- 

 flammation of the bowels. I have often 

 known two drams given for two or three days 

 successively, without any perceptible effect ; 

 it will sometimes, however, in that dose, oc- 

 casion great disturbance in the stomach and 

 bowels. In smaller doses it seems perfectly 

 innocent. When arsenic is emplojed as a 

 tonic or strengthening medicine, it should 

 be finely powdered, and mixed into a ball 

 with aniseed, ginger, or other cordials. At 

 the same time, attention should be paid to 

 the horse's diet, &c. It is necessary to give 

 some mucilaginous liquid, such as zcater 

 gruel, or infusion of linseed, just before 

 the arsenic, that it may not act upon the 

 tomach too violently. (See Balls.) 



The cases in which arsenic is said to be 

 most beneficial, aie those where horses be- 

 come weak and emaciated without any ap- 

 parent cause ; sweating with the most mo- 

 derate exercise, and almost incapable of 

 doino^ a day's work. 



