175 
It results from this experiment, that in adding the length of these electri¬ 
fied plants, to that of their roots, the whole measure amounts to 55f-J lines, 
whieh divided by 15, gives to each Lettuce 3f lines from the summit of the 
stalk to the extremity of the root. 
In making the like calculation for the non-electrified Lettuce plants, the 
measures amounts only to 4Q0^ lines, which likewise divided by 15, makes 
each plant 33 lines long. 
There exists, therefore, a difference of three lines in each plant, between 
those electrified and the non-electrified, as proved by comparing the average 
amounts from the whole. 
ELEVENTH EXPERIMENT. 
After having taken from each vase the fifteen plants, as mentioned in the 
former experiment, I placed the vases in the shade, and purposely desisted 
from giving any water to the remaining plants in order to make an observa¬ 
tion of another kind. 
May 4th. The electrified plants were in just as good a state, as when I 
had watered them for the last time, April 30th. 
The non-electrified had suffered exceedingly. 
May 6th. The electrified Lettuces still retained a fine verdure, but the 
stalks began to bend down a little. 
The ?io?i-electrfied plants were faded, and drooped down on the ground. 
May 8th, the electrified plants lost a little of their verdure, and the stalks 
were more bent. 
The non-electrfied plants were become yellow, the stalks white, and quite 
bent down upon the ground. 
May 10th, the ?ion-electrfied plants were totally dead. 
It was May 15th, before the electrified plants had completely withered. 
TWELFTH EXPERIMENT. 
May 7th, I electrified some Mustard Seeds, in doing of which I ob¬ 
served the following process: 
I took two pieces of cork, to which I gave three lines in thickness, an 
