CONTENTS. 



CHAPTER I. 

 INTRODUCTION 



CHAPTER II. 

 DISTRIBUTION OF WEEDS 10 



CHAPTER III. 

 PREVENTION AND ERADICATION OF WEEDS - - - - - - 43 



CHAPTER IV. 

 VITALITY OF WEED SEEDS - - - 7 2 



CHAPTER V. 

 HABITS OF WEEDS 84 



CHAPTER VI. 

 PARASITIC WEEDS 9 2 



CHAPTER VII. 

 POISONOUS AND INJURIOUS WEEDS IO 3 



CHAPTER VIII. 

 ARABLE WEEDS. ASSOCIATION WITH SOILS. I. GENERAL - - - "7 



CHAPTER IX. 

 ARABLE WEEDS. ASSOCIATION WITH SOILS. II. SPECIAL - - - 121 



