508 
Mr . Babbage on electrical 
Oscillations. 
Diff. 
§ Diff. 
Mean point. 
0 
O 
O 
O 
! R 0 
L 4 
4 
2 
2 
Lighted lamp, and set it 
and plate 
revolving. 
R -.5 
L + 10.5 
1 1 
5-5 
5 ' 
R - 1.5 
j L -f 12 
i 3'5 
6.75 
5.25 
R — 8 
18.5 
9.25 
L + 10.5 
R — 5.8 
L + 4 
1.25 
9.8 
4-9 
—0.9 
R - 3 
L + 6.5 
9-5 
475 
+ 17s 
R — 9.5 
L + 9-5 
R - 13.5 
L +12 
19.0 
0 
9-5 
0. 
25.5 
12.75 
—0.75 
R — 15 
L -f- *7 
32 
16.0 
■f 1.0 
R — 14 
L 4-12 
26 
13.0 
— 1.0 
R — 11 
L + 9 
20 
10 
— 1.0 
The lamp burned with a very dull flame, r \ inch long, the 
top of the flame about f inch below the pewter disc ; it was 
lighted by a small stick, which burnt with a flame, and gave 
more heat than the lamp during the short time it was under 
the plate. This experiment lasted about twenty minutes. 
Experiment 12. 
The same brass needle being used in the same apparatus ; 
the distances remaining as before, the lamp was trimmed, so 
as to give a much brighter flame. 
