Contents. 



Page 



Introductory remarks 5 



Commercial notes and scientific information on essential oils 9 



New essential oils + 82 



The new Dutch Pharmacopoeia IV 84 



The new Belgian Pharmacopoeia III 88 



Supplement to the German Pharmacopoeia IV 92 



Commercial notes and scientific information on chemical preparations and drugs 96 

 Notes on recent research work concerning terpenes and terpene derivatives 10 1 

 Systematic experiments on the antiseptic action of essential oils and their con- 

 stituents, by Karl Kobert 153 



List of abbreviations. 

 d = specific gravity. 

 o^qo = specific gravity at 20 , compared with water at 15 . 



20° 



d —5- = specific gravity at 20 , compared with water at 4 . 



4 

 a = optical rotation at 20°, in a 100 mm. tube. 



[a] D = specific rotation. 



n^ n = index of refraction at 20 . 

 D20 



Sol. p. — solidifying point. 



M. p. = melting point. 



B. p. = boiling point. 



n = normal. 



Acid no. = acid number; ester no. = ester number; sap. no. = saponification 



number, 

 g. = gram; cc. = cubic centimeter; mm. = millimeter. 



Temperatures are uniformly given in 

 The strength of alcohol, if not otherwise indicated, 



degrees Centigrade. 



i$ given in per cent, by volume. 



