Figure ::- F rte-.-rs or .ikiiniiiie r.iiuie jjia ^\,\ jh .pn^w^zL -luc jrgan loxmaCLon 

 ia tobacco srem segments. Exp. =C started q, z8, 48. Photagrapiieii aiier 

 30 davs. r. Controi; 2. .Adenine suifete 40 mg., L; 3. L\A 0.02 mg., L; 4- 

 Adenine sui£ite 4.0 mg. L plus L\i\ cuox mg.. 1- 



