54 
Richards . — The Evolution of 
Experiment 17 . 
Two onions ( Allium Cepa) diameter about 6 cm. In warm 
room three days before using. One cut at io.oo a.m. The 
wounds gape so that the needle was always inserted a little 
behind the cut surface. 
Duration of Experiment. 
Temperature 
in room. 
Deflec. of 
Galvan. 
Equiv. in °C. 
First day 
io.oo a.m. 
24°- 20 
0.0 
o°.oo 
12.00 noon 
24° 20 
1-6 
0°.n 
3.00 p.m. 
2 4 ° # 3 ° 
3-2 
0°-22 
,, 
6.00 „ 
24° 1 5 
4.0 
0°-28 
Second day 
9.00 a.m. 
24°-IO 
4.0 
0°-28 
f) 
12.00 noon 
2 4°. 00 
4-3 
0°30 
5.00 p.m. 
2 4°* I 5 
4-0 
0°*28 
>5 
6.00 ,, 
24 .20 
3 -o 
0°.21 
Third day 
9.00 a.m. 
24 °* 4 o 
2-3 
0°.16 
„ 
12.00 noon 
24 °- 5 ° 
2-0 
0°.14 
Fourth day 
2.00 p.m. 
24 °* 40 
1.6 
0 °.ll 
9.00 a.m. 
24 °- 5 ° 
1-0 
0°.07 
,, 
5.00 p.m. 
24 ° 30 
1-0 
0°.07 
Fifth day 
9.00 a.m. 
24 °- 3 o 
0.6 
0°04 
5.00 p.m. 
2 4 0 -40 
o *3 
0°*02 
Experiment 18 . 
Showing that the whole tissue of the onion is sympatheti- 
cally affected. Two onions, one of which was wounded by 
cutting. Allowed to remain twenty-four hours until maximum 
reached. Temperature, 24°*40. 
Distance from, 
wound. 
Deflec. of Galvan, 
Equiv. in °C. 
I mm. 
4.0 
0-28 
2.4 mm. 
3.0 
0.21 
3.5 mm. 
3 -o 
0-21 
lo-o mm. 
3-3 
0-23 
16-0 mm. 
3-0 
021 
45.0 mm. 
2-5 
0-17 
