Heat by Wounded Plants. 
59 
Experiment 26. 
45 onion-bulbs [Allium Cepa ) — 500 grams — in each bell- 
glass. Had been in warm room two days before beginning 
of experiment. Washed objects with 1 °/ o Formalin to sterilize 
them. 
Duration of Experiment. 
Temp, in 
Bell-Glass A. 
Temp, in 
Bell-Glass B. 
Difference. 
Temperature 
outside. 
June 30 
6.00 p.m. 
24.25 
24-20 
-05 
23.90 
July 1 
8.30 » 
24-10 
24.IO 
0-00 
23.70 
Onions in Bell-glass B cut into quarters at 8.45. 
First day 
10.30 a.m. 
24.15 
24.25 
0.10 
23-80 
99 
n.30 „ 
24.20 
24-45 
0.25 
23.80 
99 
12.00 noon 
24.25 
24-75 
0.50 
23.90 
99 
12.30 p.m. 
24.30 
24-90 
0-60 
23-95 
1 .00 ,, 
24.50 
25.20 
0-70 
24.00 
» 
2.00 ,, 
24-65 
25-55 
0-90 
24-00 
3.30 „ 
2 4-55 
25.90 
135 
24.10 
4-30 „ 
24-60 
26-20 
1-60 
24-20 
» 
5.30 » 
24.60 
26-40 
1.80 
24.20 
99 
7-30 „ 
2470 
26-65 
195 
24.10 
9-3° „ 
24-80 
27.20 
2-40 
24-05 
Second day 
8.00 a.m. 
25-50 
28.70 
3-20 
25.10 
10.00 „ 
25-5° 
28-80 
3-30 
25.10 
»> 
4.00 p.m. 
25.50 
28-30 
2-80 
25.20 
Third day 
9.00 a m. 
24.40 
25-60 
120 
24-20 
» 
4.00 p.m. 
24-40 
25.40 
100 
24.15 
Fourth day 
9.00 a.m. 
24-40 
25.00 
0-60 
24.00 
1. 00 p.m. 
24.40 
24.85 
0-45 
2410 
5.00 „ 
24-30 . 
24-55 
0-25 
24-00 
Fifth day 
10.00 a.m. 
24.40 
24.50 
0-10 
24.20 
