Output of CO, in Crams. 
Development of Chlorophyll. 
81 
•0033 
'0036 
•003* 
©Q36 
0030 
0028 
0066 
002 * 
'0028 
•0020 
I 
ooia 
*0016 
•oot* 
* 0012 . 
TOOIO 
•0008 
'0006 
0006 
0002 
OOOO 
Time, in Hours 
Fig. 6 . 
TABLE III. 
Etiolated Shoot-tips of Vicia Faba. 
No. of 
Reading. 
Grams of CO.^ 
given out. 
Illumination. 
Colour of Leaves. 
i 
•0021 
Dark 
Orange yellow 
2 
•0017 
99 
3 
.0015 
>> 
4 
.0014 
99 
5 
.00T4 
Light 
6 
.0015 
ft 
Traces of green 
7 
•0015 
99 
8 
•0016 
Dark 
9 
.0015 
99 
IO 
.0015 
99 
11 
•0016 
99 
12 
.0014 
99 
13 
•0017 
Light 
14 
•0014 
99 
15 
•0014 
99 
16 
•0013 
99 
Pale green 
17 
•0012 
>> 
18 
.0012 
Dark 
J 9 
•0012 
99 
20 
•0015 
99 
21 
•0015 
Light 
22 
•0013 
99 
23 
.0015 
99 
24 
•0011 
99 
Grass green 
25 
•0011 
99 
26 
•0012 
Dark 
27 
•0011 
99 
! 
n 
