1904.] 



PUBLIC DOCUMENT — No. 33. 



33 



Effect on Germinating Seeds. 

 Two lots of one hundred seeds of each kind were taken. 

 These seeds were placed in porous clay dishes and soaked 

 for six hours. Tlie first lot was placed in Case 1, and sub- 

 jected to an electrical charge every eight hours, induced 

 into the air of the case from the Iloltz machine. The sec- 

 ond lot was placed in Case 2, — a small glass case, Avlierc no 

 electrical charge was allowed. In all instances the clay 

 dishes were set in basins of water, so that the seeds were 

 moist at all times. The conditions of the temperature and 

 moisture were practically the same, the former varying from 

 18° to 20° C, the latter from 76 to 85 per cent. Both 

 cases were closed, and under similar conditions. 



Table 1. — Showing Effect of a Positive Charge tq^on Germinating 



Seeds. 



[N, normal; C, Charged.] 



Kind of Seed. 



ToTAi^ Number of Seeds 



GERMINATED IN — 



White clover, | ^' 



Onion j ^• 



Onion j ^| 



Lettuce j ^' 



Red clover | ^' 



Total per cent, acceleration in charged seeds, 



Table 2. — Showing Effect of a Positive Charge upon Seeds that have 



lost Vitality. 



Kind of Seed. 



Total Number of Seeds 

 germinated in — 



34 48 



Hours. Hours. 



72 



Hours. 



96 



Hours. 



120 



Hours 



Musk melon, . 

 Onion (Red Globe), 

 Onion (Belden), 



'I. 



'C, 

 'C, 



1 



2 



3 



33 



20 



