18 ELECTRICITY IN AGRICULTURE 
‘field. Two of these photographs are represented in Figs. 
I and 2 on the opposite page. 
The machine had been at work for 164 hours when the 
photographs were taken. The difference between the 
experimental and control fields was estimated at 40 per 
cent. The experiments were continued till August 24th, 
and the harvest gave: 
From the experimental field 16 plants weighing 18 kg. 
45 control LO. 55 35 13 kg. 
or nearly 39 per cent. better result on the experimental field. 
The fields were situated on gently sloping ground, and- 
were divided into two sections, an upper and a dower one, 
of which the upper was watered with 50 per cent. more 
water than the lower. The results were: 
Carrots an increase of 8°7 per cent. 
White Beets _,, Iz yy 
Beans 43 ite 4, 
Of the carrots, the upper and more watered field showed 
the above increase; of the beets, on the contrary, the lower 
or less watered. The remaining fields showed nearly the 
same result. The short time (only eight hours daily) 
during which the machine was in motion exercised a con- 
siderable influence on the results. 
We must here call attention to a singular circumstance. 
concerning these experiments., It seems that the tobacco 
plants had by middle July, or during the time I could 
personally survey the experiments, already given, approxi- 
mately, the surplus that was attained in the final result. 
Therefore, it appears as if the electricity had no increased 
effect over the interval of more than a month during 
which the experiments were continued. This strange cir- 
cumstance gives rise to the supposition that a defect, not 
seen by the person in charge, belongs to these experiments. 
I suppose that the machine had been running uncharged 
during the greater part of this time without this fact being 
observed. I was myself on a journey. 
