Bappicker—Onx the Influence of Magnetism on the Rate of a Chronometer. 51 
beginning of a longer and more thorough investigation, but which by itself would 
doubtless lead to remarkable results :— 
1. ‘“‘ Azimuth” observations, 8 revolutions of chrono- 
meter, N., E., S., W., é , : 12 days. 
2. Soft iron in the sdonidinn: 3 Petclnn os N,, E., 
Sy Way Se , : } : : : ; 1. 
3. One reveluien gs Under: 9%. 4 ,, 
4. Magnet in meridian at alence ferent Hevinion 
45°, 3 revolutions N., E., S., W., north pole, iy 
5. One revolution as underl, : é 5 ‘ A 5, 
6. Arrangement as under 4, chronometer fixed, magnet 
turned N., E., S., W. three times, | ae 
7. One revolution as under 1, Ay os 
8. Experiments as under 4, south pole, 12) 3 
9. One revolution as under 1, Aes 
10. Experiments as under 6, south pole, 12a 
11. One revolution as under 1, A ie 
12. Repetition of experiments under 2, Ie 
13. Repetition of experiments under 1, eae 
Total, 116 days. 
The different desirable variations of the above’ series suggest themselves 
sufficiently after the preceding remarks, so as to render further comment upon 
them unnecessary. I only need point out in a general sketch what I consider to 
be an arrangement of magnetic experiments upon chronometers which would be 
least open to objections, and most likely to lead to a final solution of the question as 
far as its peculiar character admits. 
