222 PHAHMACOPffilA. 



No. 2. Liquorice powder, half an ounce. 

 Gum ammoniacum, three drams. 

 Balsam of tohi, one dram and a half. 

 Powdered squill, one dram. 

 Anisated balsam of sulphur, enough to 

 form the ball for one dose. 

 No. 3. Elecampane powder, half an ounce. 

 Ginger, one dram and a half. 

 Powdered squill, one dram. 

 Oil of aniseed, twenty drops. 

 Syrup of tolu, enough to form the ball for 

 one dose. (See Aniispasmodic Mivturesfor 

 Chronic Coughs.) 



Medicines are sometimes x\d.meA stomaihic 

 and ionic cordialf*; for these we raftn* the' 

 reader to the article Tonics and Stoynach't^^, 

 CORROSIVES. (See Caustics.) 

 DECOCTIONS. These are made by 

 boiliiig medicines in water until the latter 

 has extracted all its virtues. This opera- 

 tion, it is ob\ ious, is not suited to tliose sub- 

 stances, whose medical qualities dcper.d on 

 a volatile, or evaporable principle. 



DEMULCENTS. Medicines which 

 shcaihe parts, so as to defend them from the 

 action of any irritating substance. The best 

 .iiedicines of this kind are, a solution of gum 



