ME NTH A. 315 



Preparations. 



1. Spiritus Lavandulse. 1 in 50. Dose, \ to 1 fl.dr. 



2. Tinctura Layandulse Comppjita. -D(/w, to 2 fl.dr. 



Tinctura Lavandulce Composita is contained in Liquor 

 Arsenicalis. 



Oleum Lavandulce is an ingredient of liinimentum Camphorse 

 Compositum. 



ACTION AND USES. 



Lavender possesses the action of aromatic volatile oils in 

 general, and is used in the same way. The tincture is a 

 favourite colouring material for mixtures and lotions. 



Menthas Piperitae Oleum OIL OP PEPPER- 

 MINT. The oil distilled in Britain from fresh flower- 

 ing Peppermint, Mentha piperita. 



Characters. Colourless or pale yellow, with the odour of 

 peppermint ; taste warm and aromatic, succeeded by a sense of 

 coldness in the mouth. 



Dose. 1 to 



ITIenthre Viridis Oleum OIL OF SPEARMINT. 

 The oil distilled in Britain from fresh flowering 

 Spearmint, Mentha viridis. 



Characters. Colourless or pale yellow, with the odour and 

 taste of spearmint. 



Dose. 1 to 4 min. 



Composition. Peppermint oil consists of a liquid terpene, 

 and a stearoptene, peppermint-camphor or menthol, C^H^O, in 

 colourless prisms, with the taste and odour of peppermint. Oil 

 of spearmint has probably a similar composition. 



Preparations. 

 A. Of Peppermint : 



1. Aqua Menthse Piperita. 1 in 853, by distillation. Dose, 



1 to 2 fl.oz. 



2. Essentia Menthse Piperita. 1 in 5. Dose, 10 to 20 min. 



3. Spiritus Menthffl Piperitse. 1 in 50. Dose, 30 to 60 min. 



Oil of Peppermint is also contained in Pilula Rhei Com- 

 posita. 



