CONTENTS. xix 



Page 



Benzole or benzin and its compounds. . 858 



Hydrobenzamide, &c. . . . 860 



Benzoine, benzile, benzilic acid, &c. ) . 862 



Synaptase. . . . * . 862 



CHAPTER V. 



Essence of cinnamon and bodies derived from it. 965 



Cinnamyl series of compounds ; oil, cinnamic 



acid, &c. .... 866 



CHAPTER VI. 



Salicin and bodies obtained from its decomposition. 



Salicin, &c. .... 870 



Salicyl series ; salicylous acid, salicylimide, 



salicylic acid, &c. . . . 871 



Phloridzin and the bodies derived from it. . 875 



Glyceryl, &c. . . . . 877 



Ethal and the cetyl series. . . . 879 



CHAPTER VII. 



Other indifferent substances. 



Class I. Ordinary constituents of plants. 



SECT. I. Pectin, pectic acid. . . 881 



SECT. II. Volatile or essential oils, and their resins. 883 



A. Essential oils "containing no oxygen ; oil of 



turpentine. .... 885 



Colophony or resin of turpentine. . 889 



Oil of lemons, copaiba, &c. 



B. Essential oils containing oxygen ; oil of ber- 



gamotte, anise, cloves, cummiri, pepper- 

 mint, cedar, &c. 

 Camphor, camphoric acid, &c. . 899 



C. Essential oils containing sulphur; oil of 



mustard, &c. . . 901 



Nicotianine, helenine, caoutchouc, &c. . 902 

 Resins, amber, resinous varnishes. 



Gum resins, chlorophyl, . 90 ? 



