468 
CAPTAIN SABINE ON THE LENGTH OF THE SECONDS PENDULUM 
Examining these observations, we have 
I. 
Arcs 6.42 to 0.24 
Vibrations 86080.77 
Correction for the arcs by the 1 , „ „ 
formula +0M 
Numbers which should agree") 
if the corrections computed l 
by the formula were just [ 
compensations j 
II. 
1.31 to 6.52 
86079.54 
+ 1.29 
86079.83 
III. 
6.52 to 6.15 
86080.81 
+ 0.17 
86080.98 
On the 28th of April following, I repeated the experiment in arcs designed 
to make the differences between the experimental and computed results still 
more apparent. The clock, by Dent, was making 86660.5 vibrations on an 
average of several days about that period. 
