Wounded Plants 
559 
Experiment 9. 
8 potatoes, 260 grams. Air- and hydrogen-current as before, 
3*5 litres per hour. 
Date. 
Time . 
Tempera- 
ture. 
Medium. 
mg. CO 2 
produced 
per hour. 
i. 6. ’96 
4.OO- 5.00 p.m. 
20°-6 
Air 
2-80 
99 
5.00- 7.00 „ 
2 o°«6 
Hydrogen 
3.1° 
99 
7.00 - 9.00 ,, 
20°*4 
99 
2.00 
The potatoes were cut in half, washed as usual, and placed as quickly as 
possible in an atmosphere of hydrogen. Plydrogen run through 
apparatus in a strong stream until practically pure. 
i. 7. ’96 
10.00 - 1 1. 00 a.m. 
20°.8 
Hydrogen 
l6*8o 
>> 
1 1. 00- 1. oop.m. 
20° 6 
99 
13-20* 
99 
1.00- 3.15 „ 
20°*7 
V 
10-00* 
99 
3.15- 4.15 „ 
2o°-5 
9 9 
9-00 
>> 
4- T 5 ~ 5-15 „ 
20°. 3 
99 
8-90 
>> 
5.15- 6.15 „ 
20°*2 
99 
8-20 
99 
6.15- 7- T 5 » 
20°. 7 
99 
7.90 
1 } 
7 -i 5 - SM 5 » 
20°-7 
99 
7-80* 
The determinations of Jan. 7 are all in hydrogen, of the 
following day in air. 
i .8. ’96 
10.07 - 12.07 P" m - 
20°. 8 
Air 
I2-8o 
>> 
12.07- 1-07 », 
20°. 6 
99 
14.80 
55 
1.07 - 3.07 „ 
20°-4 
99 
15.80* 
99 
3.07 - 5.07 „ 
20°-3 
99 
I 5 ‘ 7 ° 
i. 9. ’96 
10.00 - 1 1. 00 a.m. 
20°-4 
99 
18-30 
99 
1 1. 00 - 12.00 m. 
20°-5 
99 
20-00 
99 
12.00- 1. oop.m. 
20°*4 
99 
20-40 
99 
1. 00- 3.00 ,, 
20° 2 
99 
18-80 
99 
3.00- 5.00 „ 
20°. 5 
99 
18-40* 
99 
5.00 — 7.00 „ 
20°. 5 
18-60* 
i. 10. *96 
1 1. 00 - 1. 00 ,, 
20°«4 
jj 
10-30* 
9 9 
1. 00 - 3.00 ,, 
20°. 3 
55 
I I-OO* 
>) 
3.00 — 5*00 ,, 
20° 7 
99 
10.60* 
99 
5.00 - 7.00 „ 
20°. 5 
99 
* 
0 
06 
* Reduced to value of i hour. 
