138 HORSERADISH HORSETAIL. 



with a thin pale brown bark easily abraded, showing 

 white beneath, fracture tough, woody, with a radiate 

 structure, with a few fine silky fibres projecting from 

 the bark. Taste, bitter, then sweetish. Odour, none. 



HORSERADISH. CochleaHa Armoracia, Linn. 



N.O. Cruciferee. 

 Part used Root. 



Action Stimulant, diaphoretic, diuretic. An ex- 

 cellent stimulant to the digestive organs, and useful in 

 the treatment of dropsy. A good condiment is made 

 by steeping the scraped root in vinegar. Dr. Coffin 

 recommends for dropsy an infusion prepared by pouring 

 i pint of boiling water on i ounce of Horseradish 

 and ounce of Mustard Seed (crushed). The dose 

 is 2-3 tablespoonfuls three times a day. 



Preparations Fluid extract: Dose, -1 drachm. 

 Comp. Sp. Horseradish B.P. : Dose, 1-2 drachms. 



Distinctive character Root white, cylindrical, 

 about i foot long and about f inch in diameter ; usually 

 sold fresh. Taste, pungent, mustard-like. Odour, when 

 the root is scraped, recalling that of mustard, and irri- 

 tating to the nostrils. 



HORSETAIL. Equisetum arvense, Linn. 



N.O. Equisetacea. 



Syn. Scouringrush, Shavegrass, Marestail, Bottle- 

 brush. 



Part used Herb. 



Action Diuretic, astringent. It has been found 

 beneficial in dropsy, gravel, and kidney affections. Also 



