ZIMMERMAN: FORMATIVE INFLUENCES 



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Fig. 2. Formative influence of 2,3,5-triiodobenzoic acid on tomato plants. A. Left, 

 control ; right, treated with 2 mg. of the chemical in 50 cc. of water applied to the soil when 

 the plant was approximately 5 inches in height. B. Left, control ; middle and right, terminal 

 shoots showing modified flowering habit and correlation of organs after the main shoot 

 had been treated with triiodobenzoic acid in lanolin (5 mg./g. [middle], and 10 mg./g.). 

 Photographs taken 30 days after treatment. 



