Wounded Plants . 
557 
Experiment 6. 
8 potatoes, 300 grams. Halved, washed, and dried. Experi- 
ment to determine if there is any increase of respiration with 
increase of injury. Air-current, 3-5 litres. 
Date. 
Time. 
Tempera- 
ture. 
mg. C 0 2 
produced 
per hour. 
xii. II. ’95 
8.20 - 9.20 a.m. 
21° 
6-20 
y> 
9.20 - 1 1.20 ,, 
20°*8 
8-6o* 
11.20 - 12.20 p.m. 
20°. 7 
8-50 
Cut each half into six pieces, washed and dried. Time, 12-30. 
xii. 11. ’95 
2.20 - 3.20 p.m. 
2o°-7 
21-70 
3.20- 4.20 „ 
20-6 
20-70 
>> 
4.20- 5.20 „ 
21° 
27.40 
xii. 12. ’95 
9.30 - 10.30 a.m. 
21° 
27-60 
Experiment 7 . 
7 potatoes, 225 grams. Respiration in uninjured condition 
less than 1 mg. per hour. Quartered, washed, and dried, and 
then at once fastened the quarters together with clay. Air- 
current, 3-5 litres. 
Date. 
Time. 
Tempera- 
ture. 
mg. Co 2 
produced 
per hour. 
xi. 28. ’95 
9.15 - 1 1.15 a.m. 
20°- 6 
3-60* 
11. 15 - 1.15 p.m. 
20°-5 
4-20* 
i -!5 " 3-15 „ 
20°- 5 
6-6o* 
>> 
3* x 5 “ 5-15 „ 
20°-5 
7.30* 
xi. 29. ’95 
9.25 - 11.25 a - m * 
21° 
7-60* 
xii. 2. ’95 
2.35 - 4-35 P- m - 
Clay removed. 
1 20°-4 
2.50* 
xii. 2. ’95 
5.05 - 6.05 p.m. 
20° 
24-60 
?? 
6.05 - 7.05 ,, 
2 0° 
25-40 
9 > 
7 ^ 5 - 9- T 5 „ 
20°-3 
20-40* 
xu. 3 - ’95 
6.10- 7.10 „ 
20 0 -4 
13-00 
xii. 6. ’95 
9.20 - 10.20 a.m. 
20°. 3 
12.00 
xii. 12. ’95 
11.45 - I2 -45 P-m. 
20°-6 
n-6o 
* Reduced to value of i hour. 
