S.A. Assn. for Adv. of Science. 



1913. Pl. 3. 



Si^^0 





1. Root of tomato showing gall formation. 2 and 3. Photomicrographs of t.s. of gall, 

 showing nests of eggs. 4. Section of gall, showing eggs. 



Prof. H. A. WAGER.— Root Knot in the Tomato. 



