102 



. Lemon Oil. "d25° not below -f-58 . 



Nutmeg Oil. (I250 0,884 to 0,924. The requirement of rotation 

 has been left out. 



Peppermint Oil. «D25° — 20 to — 33 ; ester-content (menthyl 

 acetate) at least 6°/ . 



Pimenta Oil. d 2 5o 1,028 to 1,048. 



Rosemary Oil. Ester-content (bornyl acetate) at least 2,5 °/ ; 

 total borneol at least io°/ . 



Safrol. 0-250 1,098 to 1,100. 



Sandalwood Oil. d 2 so 0,965 to 0,980. 



Sassafras Oil. Special requirements of solubility exist no longer. 



Thyme Oil. Colourless or reddish. 



Wormseed Oil, American. Requirements of specific gravity, 

 rotation, and solubility have been cancelled. 



Danish Pharmacopoeia. 



(Pharmacopcea danica 1907). 



A new edition of the Danish pharmacopoeia has now also made 

 its appearance, a fact which induces us to discuss here the articles 

 dealing with essential oils in a like manner as in the case of the other 

 pharmacopoeias of which up to now new editions have been published. 



As compared with the old Pharm. dan. 1893, no additional direct- 

 ions for testing have been given, so that generally only the colour, 

 odour, specific gravity, and solubility are taken into consideration. On 

 the other hand, a whole number of erroneous statements in the old 

 Pharmacopoeia have been corrected, and the requirements specified 

 by the new edition may be characterised almost without exception as 

 being to the point. 



No oil has been newly added, but several oils hitherto official 

 are now no longer included, for example bergamot oil, cajeput oil, 

 cassia oil, oil of juniper berries, mace oil, oil of sweet marjoram, 

 mustard oil, and crude oil of turpentine. 



The alcohols which come under consideration for testing the oils, 

 are alcohol (Vinaand, Spiritus concentratus) with 90 to 91 per cent, 

 by volume, and dilute alcohol (Fortyndet Vinaand, Spiritus dilutus) 

 with 68 to 70 per cent, by volume. 



The individual oils may now follow : — 



Anise Oil. (Aetheroleum anisi). At low temperatures, a white 

 crystalline mass, which commences to melt at 15 , and at about 20 



