188 Captain Sabine's experiments to determine the 
Results of the preceding operations. 
It remains to recapitulate the results which have been de- 
tailed, and to state the deductions thereupon. 
The acceleration of the pendulum between the stations vi- 
sited in the first voyage has been already mentioned, viz. 
33,107 vibrations between London and Brassa; 
32,1316 vibrations between Brassa and Hare Island ; 
And 65,2386 vibrations between London and Hare Island ; 
The following Table presents in one view, the results of the 
four series of observations, by which the acceleration between 
London and Melville Island has been determined. 
Vibrations. 
Acceleration. 
London. 
Melville Island 
' Pendulum 1, 
86392,4513 
86466,4793 
74.028 "I 
Clock 1,- 
>74.8151 ^ 
_ Pendulum 2, 
86545,0623 
86620,6646 
75.6023 J 
> 74,734 
'Pendulum 1, 
86388,0967 
86462,5289 
74.4332 l 
Clock 2, < 
>74,6529. 
^Pendulum 2, 
86496,9855 
86571,858 
7 4.S725 j 
It should be remarked, that in the earliest trial which was 
made of the clocks, No. 2 was considered to be deserving of 
preference, from its greater precision of beat, occasioned pro- 
bably in part by the crutch of No. 1 being rather larger than 
the diameter of the pendulum rods ; the above results seem 
to justify the preference, as the acceleration produced by 
each of the pendulums vibrating in No. 2, corresponds better 
than their results when vibrating in No. 1. It will be seen, 
however, that a mean of the results of either clock separately, 
