152 Dr Fyfe's Experiments on Electro-Culture. 



CRESSES. 



20M June. — Some earth from an adjacent piece of ground 

 was thoroughly mixed, and the flower-pots were tilled with 

 H, and cress seed sown in both. In one of the pots was 

 placed a zinc and copper plate, one at one side, the other at 

 the other, and connected by a wire above the earth ; the 

 other pot was without plates. 



Some of the same earth was put into a wooden box, a foot 

 in length and six inches wide, and cress seeds were also 

 sown. At one end was placed a zinc plate, and, at the dis- 

 tance of six inches, a copper plate, in the middle of the box. 

 The plates were connected by a wire above the eartn, and 

 thus one-half of the seeds were embraced within the circuit. 



At same time, cress seeds were sown in a part of the 

 garden ground, in two distinct plots, near each other, occupy- 

 ing each a foot in length, and half a foot in breadth. One 

 of the plots had a zinc and copper plate sunk in the earth, at 

 the distance of an inch from each other, contact being pre- 

 vented by the interposition of a small rod of wood. From 

 plate to plate there was passed a wire, under ground, form- 

 ing a quadrangle, rather less than the area occupied by the 

 seed — of course lying in contact with the seed. 



24M. — Leaves of cresses just appearing in the box, alt 

 aver the surface ; and also in both of the ground plots, at 

 eight A.M. ; at two p.m., leaves appearing in both pots. 



2bth. — Leaves continuing to enlarge ; no observable dif- 

 ference between the different parts. 



2Qth. — No difference. 



After this the plants continued to advance, in the same 

 way, in all the diflferent parts, till the 



5M July. — The galvanized pot not so healthy-looking as 

 the other ; but really very little difference. 



lOM. — All the parts apparently the same^. 



\bth, — The same. 



28M. — ^Weather dry. Cresses in box and in pots begin- 

 ning to fade. 



31^^. — Almost gone. Watered the box all over. 



1 St August. — The plants in the box revived, and the same* 

 ^11 over. 



