( ) 
when removed into a warmer Climate, a Thermo* 
meter was fixed by the fide of it ; and between the 
Hours of Ten and Eleven in the Morning, and at 
Night, notice was taken at what Height the Spirits 
flood, and the mean Height for each Day was as 
follows. 
th Therm. 
21 3i$ Divifions. 
aa 3oi 
23 281 
24 27i 
2.5 284 Hence the mean Height 
26 271 for all thefe Days was 
27 271 about 282 Divifions. 
28 271 
29 271 
30 2 ji 
The Clock-weight that keeps the Pendulum in 
Motion is 12 lb. io\ez. and is to be wound up once 
in a Month. The Weight of the Pendulum itfelf is 
feventeen Pounds, and (during the Time that the 
Clock was compared with the Tranfits of the Star) 
it vibrated each way from the Perpendicular i° 45'. 
The Magnitude of the Vibrations was eftimated by 
means of a Brafs Arc, which was fixed juft under the 
lower end of the Rod of the Pendulum, and divided 
into Degrees, &c. 
Auguji 31, Mr. Graham took off the Weight be* 
longing to the Clock, and hung on another of 6lb. 
30Z. and with this Weight the Pendulum vibrated 
only i° 15' on each fidej and the Clock went one 
Second 
Auguji, 
1731* 
