CONTENTS 



PAGE. 



Chapter I. 

 The Prevalence of Weeds 7 



Chapter II. 

 The Evils which Arise from the Presence of 



Weeds 13 



Chapter III. 

 The Possibihty of Destroying Weeds 21 



Chapter IV. 

 The Agencies Concerned in the Distribution 



and Propagation of Noxious Weeds.. 40 



Chapter V. 

 Methods and Principles Generally Applicable 



in the Destruction of Weeds. 58 



Chapter VI. 

 Specific Modes of Eradicating Weeds of the 



Thistle Family 113 



Chapter VII. 

 Methods of Eradicating Weeds of the Mus- 

 tard Family 149 



Chapter VIII. 

 Eradication of the Weedy Grasses 175 



Chapter IX. 

 Specific Modes of Eradicating Miscellaneous 



Troublesome Weeds 196 



