Contents. 



Page 



Introduction 5 



Commercial notes and scientific information on essential oils ... 17 



New essential oils 104 



Pharmacopoeias . 109 



Chemical Preparations and Drugs 111 



Notes on recent research work: — 



General 116 



Analytical 116 



Physical 122 



Pharmaco-physiological 123 



Phyto-physiological 124 



Chemical 126 



Hydrocarbons 127 



Alcohols 139 



Aldehydes 144 



Ketones 146 



Phenols and Phenol Esters 150 



Acids 154 



Nitrogenous Bodies 154 



List of abbreviations, 

 d = specific gravity. 



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

 d 2 °|- = specific gravity at 20°, compared with water at 4°. 

 « D20 o = optical rotation at 20°, in a 100 mm. tube. 

 [«] D = specific rotation. 

 h D 2oo — index of refraction at 20°. 

 Sol. p. = solidifying point. 

 M. p. = melting point. 

 B. p. = boiling point, 

 n = normal. 



Acid v. = acid value; ester v. = ester value; sap. v. = saponification value, 

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



Temperatures are uniformly given in degrees Centigrade. 

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

 cent, by volume. 





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T> 



s 



