ILLUSTRATIONS. 



PLATES. 



Page. 

 Pi.ATK I. Fig. 1. — Slat-shade field, showing Iron cowpeas as grown be- 

 tween tobacco crops. Fig. 2. — Leaf of tobacco, showing 

 "white veins." caused by the tobacco thrips (Eiitlinps nico- 



lirnid) n 



II. Fig. 1. — Slat-shade tobacco field, showing seed bed. Fig. 2. — 



Cheesecloth-shade tobacco field, showing seed bed It) 



TEXT FIGURES. 



Fic. ]. The tobacco thrips U-Jiitltrip-s iiiroiidiKi) : adnlt 8 



2. Diagram showing total monthly precipitation at Tallahassee, Fla., 

 during April, May, June, and July, 100(>-l!)()(^ to illustrate rela- 

 tion of rainfall to amount of injury by the tobacco thrips IT) 



4 \ 



