The Food Making of Plants 



93 



Treat a castor-oil bean or a piece of onion in the same 

 manner. No blue appears, because their food is not stored as 

 starch. 



FIG. 80. Learning plant ways in Eunice High School, Bloemfontein. 



Ex. 38. Starch formed in Green Leaves. In the afternoon of a 

 bright day, place a few green leaves in a strong solution of chloral 



