744 Hiley . — On the Value of Different Degrees of 
Total period (/+ T) = i hour. 
t 
~f = 3>l6 ' 
R = 3-66. 
Point of equilibrium is about the middle of the box. 
.*. r = 30 cm. 
C — 16. 22 mg. 
Thus = 3-16, — = 1 6-2 2. 
T 0 mg 
CT , f 
= about 5-13. 
mg.t 
Experiment 25. April 29, 19 11. 9.30 a.m. to 6 p.m. 
Temp. = 2 4 0 C. 
Radius of rotation at middle of box — 30 cm. 
0 = 94°. 
Total period (/+ T) = 1 hour. 
R = 350. 
All radicles bent down. 
.*. r > 34 cm. 
C > 1 6-8 mg. 
Thus 7^ = 6-oo,— > 
T mg 
CT 
"mg.t 
>2.8. 
i6-8. 
Experiment 26. Oct. 21, 1911, 6.30 p.m. to Oct. 22, 10.30 a.m. 
Radius of rotation at middle of box = 30 cm. 
0 = 94°. 
Total period (/+ T) — 41 m. 
R = 3.77. 
Point of equilibrium near middle of box. 
.*. r — 30 cm. 
C — 17-2 mg. 
t C 
Thus 777 = 6* ii .* — = 17-2. 
T mg 
CT 
= about 2-82. 
mg.t 
