LIST OF ILLUSTRATIONS. 



Plate I. 

 Fig. 1. Orohanche indica on mustard. 

 Fig. 2. Orohanche indica on tobacco. 



Plate II. 

 Fig. 3. Orohanche eernua on tobacco. 

 Fig. 4. Tobacco field at Birowlie ; 0. eernua and 0. indica. 



Plate III. 

 Fig. 5. Tobacco field at Birowlie ; 0. eernua and 0. indica in plot 



which had received sodium nitrate — season 1915-16. 

 Fig. 6. " Tokra " at Birowlie in tobacco plot which had not received 



any nitrate — season 1915-16. 



