ACORNS 73 



There was no discoloration of the seed substance and no 

 perceptible shrinkage ; the slightly narrowed shape of the 

 seed owing to the further growth of the cotyledons. The 

 following sketch will show the growth to which I refer. 



It is desirable to mention that all the potted seeds were 

 negatively charged, because the soil in the pot took its charge 

 from the positive air so that the polarity of the plant was 

 reversed and I have said that plants grown under such 

 conditions are not grown naturally. In the greenhouse 

 they were, no doubt, cut off to some extent from vitalising 

 air, and allowance must be made for that, but the doors 

 and lights of the greenhouse were open when the weather 

 permitted and the pots were placed in a position where 

 they got ample light. 



We may now compare those grown in the open ground 

 with the pot seedlings. 



Open Ground Seed, 



I dug up one that had been sown horizontally. The root 

 had descended too deeply to be got up in its entirety, so 



