CONTENTS. 



CHAPTER I. 



THE PLANT 



CHAPTER II. 



CULTIVATION 



CHAPTER III. 

 CUEING .......... 67 



CHAPTER IV. 



PRODUCTION AND COMMERCE .......... 137 



CHAPTER V. 



PREPARATION AND USE ............ 231 



CHAPTER VI. 



NATURE AND PROPERTIES .. .. .. 253 



CHAPTER VII. 



ADULTERATIONS AND SUBSTITUTES .......... 267 



