iNFLrEXCE OF CeRTATX CARBOHYDRATES ON GrEEX PlANTS 59 



Fig. 10. TOXICITY of g.\lacto5e 

 All root tops were killod after contact with the agar medium containing galactose 



Fig. 11. antagonistic actiox of glucose toward galactose 



1, Galactose, 0.02.5 mol; 2. galactose, 0.02.5 mol., + 0.25 mol. glucose; 3, glucose, 0.05 mol. 

 4, galactose, 0.025 mol., + 0.003125 mol. glucose; 5, check (no sugar) 



