138 



EXPERIMENT STATION. 



[Jan. 



age of all the data given in Tables I. and II. It will be noticed 

 that the radicles are stimulated more in all cases than the hjpo- 

 eotyls, this difference being more pronounced in the positively 

 than in the negatively charged seedlings. In Fig. 2 are shown 



H 



-i- 



Fig. 1. — Showing the effects of positive and negative electrical charges on the growth of lettuce 

 and radish seedlings. Average of the results in Tables Land II. 



the effects of positive and negative charges on the growth of 

 radish seedlings, being an average of two experiments. Fig. 3 

 shows the effects of positive and negative electrical charges on 

 the growth of lettuce seedlings, being an average of three experi- 

 ments. 



