MODERN FARRIER. 613 



dose about two or three ounces. An essential oil is 

 obtained from them bj' distillation, the dose of which 

 is three or four drams. Oil of turpentine seems to 

 possess nearly the same medicinal qualities, and be- 

 ing considerably cheaper, is generally preferred. 



Opodeldoc. A solution of soap and camphor in 

 spirit of rosemary ; it is more properly named in the 

 late dis{)en?atories soap liniment. The following 

 formula is from the London Pharmacopoeia : 



Digest the soap in the spirit of rosemary, and after- 

 wards the camphor, till they are dissolved. By in- 

 creasing the proportion of soap which the spirit will 

 dissolve by a moderate heat ; the compound, when 

 cold, will be solid, and resemble the celebrated 

 Steer's Opodeldoc. 



.Mustard. Flour of mustard made into a thin 

 paste with water, with the addition of a little liquid 

 ammonia, forms a stimulating embrocation, which is 

 rubbed on the belly and chest in inflammation of the 

 lungs and bowels with good effect ; and when the 

 kidneys are inflamed it is rubbed on the loins. 



Massal, A cordial powder, so named in India, 

 and commonly given to horses after much fatigue or 

 exposure to rain. It is considerably stronger than 

 the cordials usually employed in England ; one dose 

 containing 



Pepper, - - - - 2 drachms. 



Ginger, - - - - 2 drachms. 



Saffron, . - - - 2 drachms. 



Jaggery, - - - - 2 drachms. 



Mustard, - - - - 2 drachms. 



