4 
REV. F. FALLOWS’S OBSERVATIONS WITH AN INVARIABLE 
Fourth Series computed. 
1830. 
Mean 
Temp. 
Interval. 
Uneorrected No. 
of Vibrations. 
Clock’s 
Rate. 
Correc. for 
Arc. 
Reduc. to 
62° Fahr. 
Reduced Vib os 
in 24 Mean Solar 
Hours. 
6°7.6o0 
h 
0 
m 
52 
S 
36 
86087.52 
-0.93 
+ 2.481 
+ 2.379 
86091-45 
68.175 
0 
52 
43 
86088.76 
0.93 
1.275 
2.600 
86091.70 
69-725 
0 
52 
44 
86088.90 
0.93 
0.624 
3.252 
86091.85 
71.875 
0 
52 
21 
86084.94 
0.93 
4.340 
4.157 
86092.51 
72.125 
0 
52 
30 
86086.48 
0.93 
2.168 
4.263 
86091.98 
71.225 
0 
52 
34 
86087.18 
0.93 
1.095 
3.984 
86091.33 
70.825 
0 
57 
41 
86085.86 
0.93 
2.600 
3.715 
86091.24 
70.750 
0 
52 
35 
86087.34 
-0.93 
+ 2.053 
+ 3.684 
86092.15 
Mean. . 
70.294 
Mean .... 
Buoyancy 
86091.78 
+ 5.91 
(No. of Coincidences 
s Number of Vibrations in vacuo,! 
in 24 Mean Solar Hours... / 
86097.69 
Rate of the Sidereal Clock. 
Jan. 22nd. 
By Castor 
-0.90 
0.96 
0.82 
0.90 
0.80 
1.02 
-1.08 
e Geminor 
Sirius 
S Geminor 
Castor 
Procyon 
Pollux 
Mean Rate . . 
-0.93 
Abstract of Mr. Fallows’s observations. 
Mean of 401 
Mean of 419 
Mean of 507 
Mean of 81 
coincidences 
coincidences 
coincidences 
coincidences 
. = 86097.6/ 
. — 86097.66 
. = 86097-70 
. = 86097-69 
True Mean of 1408 coincidences 
. = 86097.68 
