262 Ward. — On Relations between Host and Pa.rasite 
TABLE IV . Readings of thermometers to show approximate temperature 
in leaves exposed to direct sunshine in greenhouse with lights open. Facing west. 
Date. 
Hour. 
Conditions. 
Temp, by 
black bulb. 
Temp, by 
ordinary therm. 
Temp, by therm, 
wrapped in leaf. 
July 24 
12.30 p.m. 
Raining: sun off 
17 0 C 
17-2° c 
33 
1-30 „ 
Cloudy: ,, 
16.4 
16.5 
33 
5-30 „ 
Clear: ,, 
18 
18 
» 25 
9.50 a.m. 
3 3 33 
18 
18 
33 
9-51 4 
Bright sun on 
33 
10.0 „ 
3 3 3 3 
22 
24 
12.25 „ 
Clouds : sun off 
18 
18 
„ 26 
10.25 „ 
Clear: ,, 
18 
18 
33 
11.0 „ 
Slight sun 
19 
19-5 
» 27 
11.30 „ 
Cloudy : sun off 
i8-8 
19 
33 
12.5 noon 
Sun on 
21.5 
21.2 
33 
12.6 „ 
33 
22 
21*8 
33 
T2.7 „ 
„ 
22-5 
22-2 
12.8 ,, 
Clouded over 
33 
12.22 „ 
Sun out 
33 
12.27 „ 
33 
23 
25*5 
33 
12.29 >, 
33 
23*7 
26 
12.30 „ 
Clouded over 
33 
12.38 „ 
Sun out 
28.5 
33 
1243 „ 
33 
26 
28 
33 
12.58 „ 
Hazy 
25 
28 
33 
1.6 p.m. 
Sun out 
26.5 
26.8 
33 
I-I5 „ 
33 
26.5 
27.2 
33 
1. 16 „ 
33 
27 
28 
33 
1.20 „ 
33 
2 9*5 
27.2 
26.6 
33 
1.22 „ 
„ 
28 
25.5 
33 
1.24 „ 
Drawn blind 
24 
33 
2.10 „ 
33 
24-2 
24 
27 
33 
2. 11 „ 
Blind up 
28 
25.8 
26.S 
33 
2.22 „ 
After cloud 
27.4 
25.6 
26.5 
33 
2.24 „ 
33 
26.5 
25-5 
33 
2-25 „ 
Blind down 
21 
33 
3-20 „ 
Blind up 
21 
21-2 
22 
33 
3.21 „ 
Full sun 
22 
21-8 
25 
33 
3.24 „ 
33 
27 
2 3-5 
33 
3- 2 4i » 
Cloud 
33 
3.25 » 
Sun out 
25.2 
33 
3.26 „ 
Full sun 
28 
24-5 
33 
3-27 „ 
Cloud 
22.8 
33 
3.29 „ 
33 
24 
22.5 
19-5 
July 28 
9.45 a.m. 
Clear : sun off 
19-5 
19-5 
20 
33 
11. 2 „ 
3 3 3 3 
20 
20 
33 
11. 3 „ 
Blind up : cloudy 
33 
11.4 „ 
33 33 
20-2 
20.2 
20*2 
33 
u.6 „ 
33 33 
20*2 
20*2 
20-2 
33 
II-7 „ 
Cloud passing 
33 
11.8 „ 
33 
Clouding 
23*5 
2 1 ’5 
23 
33 
11.9 „ 
33 
11. 10 „ 
Cloud off : sun 
25*5 
22.5 
23*5 
33 
n. 12 „ 
Full sun 
28 
23-8 
25 
33 
n.14 „ 
33 
29 
24-5 
25-5 
33 
11. 16 „ 
33 
29-5 
25 
25.6 
33 
11.18 „ 
33 
30 
25.6 
25 -7 
33 
11.20 „ 
33 
30 
25.6 
26.5 
33 
n.24 „ 
Slight cloud 
29 
25 
2 7 
33 
11.26 „ 
Cloud off 
2 7-5 
2 3-5 
26 
33 
11.28 „ 
33 
28.5 
24.8 
27 
>> 
n.30 „ 
33 
29*5 
25*3 
27.2 
33 
11-32 „ 
Full sun 
29.8 
25*3 
27.2 
3? 
11.34 ^ 
” 
31 
25-8 
28 
33 
n.36 „ 
33 
3i 
26 
28 
