560 
Richards . — The Respiration of 
Experiment 10 . 
8 potatoes, 250 grams. Quartered, washed, and dried. 
Evacuated under air-pump for half an hour, ran hydrogen 
in. Current, 3*5 litres per hour. 
Date. 
Time. 
Tempera- 
ture. 
Medium. 
mg. C 0 2 
produced 
per hour. 
ii. 28. ’96 
8.20 - 9.20 a.m. 
20°. 8 
Hydrogen 
3-60 
9.20 - 10.20 ,, 
20°.8 
yy 
3.80 
10.20 - 1 1.20 ,, 
20 0 . 7 
yy 
3 -!° 
11.20 - 12.20 p.m. 
20°. 5 
yy 
4*20 
>> 
12.20- 1.20 „ 
20°-3 
yy 
5-40 
! >5 
1.20 - 2.20 „ 
21° 
yy 
4-60 
! 
2.20- 3.30 „ 
20°*9 
yy 
4*io 
jj 
3.30- 4.20 „ 
20°*7 
yy 
3 * 9 ° 
yy 
4.20- 5.20 „ 
20°-7 
yy 
3.20 
yy 
5.20- 6.20 ,, 
20 0 -4 
Air 
4*20 
yy 
6.20 - 7.20 „ 
20°. 3 
55 
4*50 
! >> 
7.20- 9.20 „ 
2o°-3 
yy 
4-10* 
ii. 29. ’96 
9.10 - 10. 10 a.m. 
2o°.8 
Hydrogen f 
8-oo 
yy 
10. 10 - 11. 10 „ 
20°*8 
yy 
8-20 
11. 10 - 12.10 p.m. 
20°. 7 
yy 
6-oo 
yy 
12,10- 1. 10 „ 
20°.6 
a 
4.40 
j? 
1. 10 - 2.10 „ 
20°. 7 
yy 
4»20 
>> 
2.10- 3.10 „ 
20°. 7 
yy 
3.80 
?? 
3.10- 4.10 „ 
2 o °-5 
yy 
3.80 
4.10- 5.10 „ 
20°. 5 
yy 
4.00 
yy 
5.10 - 6.10 „ 
20°.4 
yy 
3.60 
yy 
6.10 - 7.10 „ 
20°-6 
Air 
5 - 9 ° 
yy 
7.10- 9.20 „ 
20°»3 
yy 
8-70* 
iii. 1. ’96 
8.20 - 9.20 a.m. 
20°*8 
yy 
19-20 
yy 
9.20 - 10.20 ,, 
20°*7 
yy 
22-40 
>> 
10.45 -n. 45 n 
20°. 7 
Hydrogen + 
10-00 
11.45 - 12.45 p.m. 
20°-4 
yy 
8-io 
5 > 
12.45- 1.45 „ 
20°-4 
yy 
8.30 
>> 
i- 45 - 2.45 „ 
20°. 7 
yy 
7-60 
yy 
2-45 - 3-45 „ 
20°. 6 
yy 
6.30 
iii. 2. ’96 
9.00 - 10.00 a.m. 
fro 
0 
0 
vo 
Air 
24-60 
55 
10.00 -1 1. 00 „ 
20°. 8 
yy 
23.10 
* Reduced to value of i hour. 
t In replacing air by hydrogen the receiver was evacuated under the air-pump 
several times, and a strong stream of hydrogen run in. 
