158 



Gardner — Studies on Grozvfh and Cell 



TABLE Vl—Comiimted. 



To prove that the placing of the root in the horizontal 

 position did not in any way cause a peculiar result, experi- 

 ments were performed in which the roots were from the begin- 

 ning allowed to grow in a vertical direction. These were 

 performed under similar conditions. The results were the 

 same as those in which the roots were placed horizontally. 

 The following tables show the results obtained : 



