TV 

 5 3 Contents. 



Page 



Introduction 5 



Commercial and scientific notes on essential oils 16 



New essential oils 144 



Pharmacopoeias 148 



Chemical Preparations and Drugs 148 



Notes on recent research work: — 



General 155 



Bibliography 157 



Analytical 159 



Physical 164 



Pharmaco-physiological 168 



Phyto-physiological 171 



Hydrocarbons 172 



Alcohols 187 



Aldehydes 194 



Ketones 196 



Phenols and Phenol Esters 199 



Acids 201 



Nitrogenous Bodies 203 



List of abbreviations, 

 d = specific gravity. 



d 2 oo = specific gravity at 20°, compared with water at 15°. 

 d^ = specific gravity at 20°, compared with water at 4°. 

 «D2oo = optical rotation at 20°, in a 100 mm. tube. 

 [«] D = specific rotation. 

 n D 2oo = index of refraction at 20°. 

 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: mrji. 



millimeter. 



Temperatures are uniformly given in degrees Centigrade. 

 The strength of alcohol, if not otherwise indicated, is given in per 

 cent, by volume. 



