390 
Mac Doug aL — The Mechanism of 
VI. 
Oct. 31, 8 a.m. Tendril of Cucurbita in horizontal position attached 
to dynamometer. (Cloudy during the entire exp.) 
Oct. 31, 
10 a.m. 
Temperature 
1 8° C. 
Tension 
I 
grm 
Nov. 1, 
8 p.m. 
V 
20° C. 
35 
3-5 
33 
5 P-m. 
55 
21° C. 
33 
4-5 
33 
Nov. 2, 
8 a.m. 
55 
1 8° C. 
35 
7 
33 
33 
11 a.m. 
53 
1 7 0 C. 
33 
7 
53 
Nov. 3, 
10 a.m. 
55 
I 2° C. 
33 
6-5 
33 
Nov. 4, 
3 P-m- 
55 
1 7° C. 
33 
6 
33 
Nov. 6, 
1 p.m. 
55 
i8°C. 
35 
6 
33 
VII. 
Oct. 24, 8 a.m. A tendril of Cucurbita , 28 cm. long, attached in 
horizontal position to dynamometer. 
Oct. 24^, 11 a.m. 
Sunny 
Temperature 28° C. 
Tension 
I 
grm. 
„ 2 p.m. 
33 
33 
30° C. 
33 
i -5 
33 
3, 3 P- m - 
33 
33 
2 5 °C. 
33 
2 
33 
Oct. 25, 8 a.m. 
33 
33 
i 9 °C. 
33 
4-5 
3 3 
„ 1 1 a.m. 
33 
33 
28° C. 
33 
5 
33 
3, 5 P-m. 
Dark 
33 
I 9 °C. 
33 
9 
33 
Oct. 26, 8 a.m. 
Sunny 
33 
1 7 ° C. 
33 
T 4*5 
33 
„ 11 a.m. 
33 
33 
36° C. 
33 
10-5 
33 
33 5 P- m - 
Cloudy 
33 
23 0 C. 
33 
I 3'5 
33 
VIII. 
Oct. 16, 8 a.m. 
position to 
Oct. 16, 11 a.m. 
„ 4 p.m. 
„ 6 p.m. 
Oct. 17, 10 a.m. 
„ 12 a.m. 
„ 6 p.m. 
Tendril of Cucurbita attached 
hook of dynamometer. 
Temperature 38° C. 
}} 
>> 
33 
33 
30° C. 
26° C. 
2 3 C C. 
2 3° C. 
2I°C. 
in perpendicular 
Tension 2 grms. 
33 3 33 
3 3 4 3 > 
5 „ 
5 53 
7 >> 
33 
