134 OBSERVATIONS OF VIBRATIONS FOR THE ABSOLUTE Horizonvau INTENSITY, 1845. 
N. Enp oF MAGNET MOVING BE. N. DND OF MAGNET MOVING W. 
Time of F i i Time Time of 
one of one 
Transit. ib. Vib. ib. ib.| Transit. Vib. 
h m 86 . mm B8 8. . 5 b 8. 8. 
5 15 53-4 : 15-536 . 15-3 | 15-530 
17 26-5 . . 17-3 527 
18 28-7 : . 5 50-4 526 
20 2-2 c : 52-4 524 
21 4.3 . " 25-6 526 
2 37-4 cs : 27-7 |. 521 
39-6 : . 0-8 521 
d 12-8 ; 2.7 519 
14-8 : 35-9 519 
48-3 | 116 . : 38-0 519 
50-3 | 120 6 : 11-0 517 
23-6 | 126 D 5 13-1 520 
25-7 | 130 Hl . 46-2 519 
58-9 | 136 51 6-0 42-0 48-4 520 
Mean observed time of one vibration = 155274. Semi-arc of vibration, commencing 6°, ending 2°. Temperature 
of magnet, 40°-0, 
27-4 28-6 | 15-624 41-6 56 41-5 | 15-604 
1-3 2-3 620 57 44-3 604 | 
3-7 4-8 622 : 59 17-7 598 
37-4 38-4 620 . 0 20-0 594 
39-9 40-9 620 1 53-4 592 
13-7 14-7 620 2 55.7 586 
16-2 17-1 618 4 29-0 580 
49-8 j 50-8 620 5 31-4 582 
52-4 53-3 618 7 46 574 
26-0 27-0 620 8 6:7 566 
Mean observed time of one vibration = 1556041. Semi-arc of vibration, commencing 6°, ending 14°. Temperature 
of magnet, 48°-4. 
60/9 7 38-6 | 15-565 20-6 5 15-562 538-8 | 46.3 | 
66 9 12-0 562 22.7 . 565 | 539-3 
70| 10 14.3 562 56-2 . 563 539-0 
76| 11 47-6 563 58.4 . 565 538-8 
80} 12 50-0 563 31-8 : 565 538.4 
86| 14 23.4 563 34.2 . 565 537-8 
90| 15 25-7 565 7-5 . 567 
96| 16 59-1 565 9-7 . 568 538-7 
100; 18 1-4 567 43-1 . 570 
106) 19 34.8 567 45.4 . 570 | 
110} 20 37-0 567 18-7 . 570 
116) 22 10.4 567 21-0 . 573 | 
Mean observed time of one vibration = 15°'5658, Semi-arc of vibration, commencing 5}°, ending 1}°. Temperature 
of magnet, 47°°6. 
