480 
Darwin . — On the Growth of 
EXPERIMENT XVIII { continued ). 
Time. 
Reading. 
Rate. 
Temp.C 0 . 
Psych. 
p.m. 
mm. 
/x per min. 
12.59-5 v 
12-870 
9.0 
19-3 
90 
Slight rain. 
i-5° » 
13.278 
8.1 
18-2 
9i 
No rain. 
2-37 » 
.510 
4.9 
20-0 
88 
3-9 » 
.676 
5*2 
197 
90 
•12.5,, 
0.298 
New zero. 
•54 » 
•527 
5*5 
19.O 
90 
4.11.^,, 
.624 
6-6 
19.2 
90 
.28 „ 
•736 
5-7 
89 
•4 I- 5» 
•813 
5-7 
19.8 
Clouds: no rain. 
5-io „ 
•945 
4-5 
I9.I 
9 1 
6.0 „ 
1.163 
4-4 
18-9 
90 
7.0 , 
1-445 
4*7 
1 8-4 
90 
8.0 „ 
•803 
6-o 
17.0 
93 
9.0 „ 
2.195 
6-5 
16.4 
95 
Nearly dark. 
10.0 „ 
•475 
4-7 
16-2 
94 
•3 » 
•480 
New zero. 
•57 „ 
.690 
3-9 
15.8 
93 
1 1.8 „ 
•730 
3.6 
July 14. 
96 
12.20 a.m. 
3*045 
4.4 
i5-i 
•32 „ 
•086 
3-4 
96 
1 
1-33 
• 290 
3-3 
15.2 
•43 „ 
•330 
4.0 
96 
2.28 „ 
•483 
3-4 
15.2 
.51 „ 
•578 
4.1 
15.2 
94 
Twilight. 
3-II » 
•638 
3-o 
•30 
.688 
2-6 
15-3 
94 
Daylight. 
•5° » 
.740 
2*6 
15-5 
96 
4-30 „ 
.860 
3-o 
15.2 
96 
Clouds. 
•34 » 
•760 
New zero. 
S>6 
5-27 „ 
.923 
3-t 
15.2 
•43 » 
•962 
2-4 
15-5 
96 
Clouds. 
6.5 „ 
4-00 
New zero. 
15.6 
9 i 
•35 » 
•TOO 
2.7 
16. 2 
96 
7-5 „ 
• 210 
3-7 
16.3 
96 
•35 „ 
16.7 
96 
8.0 „ 
•330 
2-2 
17.7 
93 
Brighter. 
•35 » 
23.6 
80 
9.0 „ 
.470 
2*3 
20.1 
77 
Clouds. Watered 
•30 n 
•550 
2-7 
20.3 
76 
about 9.15. 
10.0 „ 
•630 
2-7 
20.9 
74 
.30 » 
•720 
3-o 
23-4 
69 
Sun and cloud. 
II. 12 ,, 
.870 
3-6 
22-6 
66 
Dull. 
.40 „ 
•980 
3-9 
22-2 
69 
Sun and cloud. No 
.58 „ 
5.060 
4.4 
24.8 
64 
blinds. 
I2.l7p.m. 
5- IIQ 
2.6 
24.I 
61 
Duller. 
.21 „ 
66 
Syringed leaves. 
• 2 3*5» 
.150 
6.2 
23.8 
•33 » 
.178 
2.9 
23.I 
68 
•43 » 
.240 
6.2 
22.1 
68 
