Contents. 
Page 
Introductory remarks . 5 
Report on essential oils, commercial and scientific 8 
Novelties 79 
Notes on recent scientific work concerning terpenes and terpene derivatives . 80 
Additional notes on aromatic chemicals 96 
Table for the estimation of the amount of alcohols of the formulae C^gHg^O 
and Cj^^H^qO 102 
Table for the estimation of the amount of geranyl tiglinate 107 
Contributions to the knowledge of the pharmacological and physiologico- 
chemical behaviour of some volatile substances 109 
List of abbreviations. 
d 3= specific gravity at 15°, unless otherwise stated, 
dg^o = specific gravity at 20°. 
20° 
d == specific gravity at 20°, compared with water at 4°. 
4 
= optical rotation, at 15°, in a 100 mm tube. 
[a]D = specific rotation. 
n^ „ = index of refraction at i 
D150 J 
n = normal. 
— ^—j = semi - normal or deci- normal (titrated solutions), 
g = gramme ; cc = cubic centimeter ; mm = millimeter. 
Temperatures are uniformly stated in centigrade degrees (°). 
