156 DOGS : THEIR MANAGEMENT. 



strict injunctions are given as to diet, and a course of 

 tonics is adopted : 



Disulphate of quinine . One to four scruples. 



Sulphate of iron . , . One to four scruples. 



Extract of gentian . . Two to eight drachms. 



Powdered quassia. . . A sufficiency. 



Make into twenty pills, and give three daily. 



At the same time 1 give the liquor arsenicalis, which I 

 prepare not exactly as is directed to be made by the 

 London pharmacopoeia, but after the following method : 



Take any quantity of arsenious acid, and adding to it 

 so much distilled water as will constitute one ounce of 

 the fluid to every four grains of the substance, put the 

 two into a glass vessel. To these put a quantity of car- 

 bonate of potash equal to that of the acid, and let the 

 whole boil until the liquid is perfectly clear. The strength 

 is the same as the preparation used in human practice ; 

 the only difference is, the coloring and flavoring ingre- 

 dients are omitted, because they render the medicine dis- 

 tasteful to the dog. The dose for the dog is from one 

 drop to three drops ; it may be carried higher, but should 

 not be used in greater strength, when a tonic or febri- 

 fuge effect only is desired. 



Of the liquor arsenicalis I take ten or twenty drops, 

 and adding one ounce of distilled water, mingled with a 

 little simple syrup, I order a teaspoonful to be given 

 thrice daily with the pills, or in a little milk, or in any 

 fluid the creature is fond of. The taste being pleasant, 

 the dog does not object to this physic, and it is of all im- 



