GRAVITATION AS AFFECTED BY TEMPERATURE. 
373 
Table I.—-June 23, 1914. Silver Chains (m, m.). Lead Cylinders (M, M). 
Vacuum Pressure, 1‘0/x. Oscillation Period, 252 minutes. 
Position. 
0 L . 
d T . 
L. 
R. 
Mean. 
T.R. 
Corrected 
mean. 
Range. 
Mean 
range. 
I. s 
teady Col 
d. 
°C. 
° c. 
A 
17 
17-0 
191- 8 
192- 1 
263-8 
227-8 
227 • 9 
9J/.-5 
227-85 
57-48 
B 
132-7 
208-1 
207-8 
170-4 
170-25 
94-45 
170-37 
57-63 
A 
193- 8 
194- 0 
262-0 
227- 9 
228- 0 
94 ■ 45 
228-0 
57-68 
57-57 
B 
133-7 
207-0 
206-7 
170-35 
170-20 
94-45 
170-32 
57-48 
A 
187- 8 
188- 0 
267-7 
227-7 
■227-8 
94-45 
227-8 
57-58 
B 
136-8 
203-7 
203-4 
170-25 
170-10 
94-45 
170-22 
II. 
Steady Hot (after heatin 
g- for five hours). 
B 
210 
18-5 
133-4 
213-5 
213-3 
173-45 
173-35 
94-7 
173-20 
57-70 
A 
194- 9 
195- 3 
267-2 
231-05 
231-25 
94-95 
230-90 
57-65 
B 
212 
139-0 
208-6 
208-4 
173-80 
173-70 
95-2 
173-25 
57-87 
A 
18-5 
193-3 
193-6 
269-4 
231-35 
231-50 
95-0 
231-12 
57-65 
57-67 
B 
137-6 
210-1 
209-8 
173-85 
173-70 
95-0 
173-47 
57-60 
- 
A 
196- 9 
197- 0 
265-8 
231-35 
231-40 
95-0 
231-07 
57-72 
B 
139-0 
209-0 
208-8 
174-0 
173-9 
95-3 
173-35 
57-52 
A 
212 
18-5 
193-6 
193-9 
269-2 
231-4 
231-55 
95-3 
230-87 
In and after column 4, all readings are expressed in millimetres. 
VOL. CCXVI.-A. 3 E 
