THE RELATIVE FORCE OF GRAVITY AT KEW AND GREENWICH. 
553 
Mr. Hollis’s determinations at Greenwich under High Pressures, about 27 inches. 
Pendulum No. 4. 
Face M. 
Face P. 
1 
! 
Means. 
Set. 
V. 
Set. 
V. 
39 
40 
41 
42 
86163-84 
86163-98 
86164-30 
86164.33 
43 
44 
4,5 
46 
47 
86163-99 
86163-78 
86164-07 
86164-00 
86164-03 
Face M . 86164-11 
Face P . 86163-97 
86164-04 
Pendulum No. 6 (1821). 
Face M. 
Face P. 
Means. 
Set. 
V. 
Set. 
V. 
48 
86064-47 
52 
86063-77 
Face M . 86064-23 
49 
86064-45 
53 
86063-74 
Face P . 86063-65 
50 
86063-93 
54 
86083-55 
51 
86064-09 
55 
86063-54 
86063-94 
Pendidum No. 11. 
F 
ace M. 
Face P. 
]\Ieans. 
Set. 
V. 
Set. 
V. 
35 
86116-07 
31 
86115-20 
Face M . 86116-14 
36 
86116-26 
32 
86115-21 
Face P . 86115-22 
37 
86116-17 
33 
86115-21 
—-- 
38 
86116-07 
34 
86115-26 
86115-68 
Thus the revisionary operations give the following values of the differences between 
the vibration-numbers at Kew and Greenwich :— 
Low pi’essures. 
Kew—Greenwich = + 1'89 
= -f 1-14 
= + 0-81 
General mean 
High pressures. 
+ 1*23 by pendulum No. 
-f 1-86 „ No. 
+ 0-36 „ No. 
= + 1-22 ± - 16 . 
4. 
6 (1821). 
11 . 
4 B 
MBCCCXC.—A. 
