50 Hovurty OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 18—24, 1845. 
Gottingen Birizar. BALANCE. |e _: | Gottingen BIFILAR. Denner < 3 
Mean Time || Decrrna- ||— | 2-2] Mean Time || Decrina- 28 
of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| $°¢ | of Declina- TION. Cor- |Thermo-|| Cor- |Thermo-|| 2°35 
tion Obs. || rected. | meter. || rected. | meter. |S '*] tion Obs. rected. | meter. || rected. | meter. || 5 ~ 
2d. mall *hintiw NiSeDin o |IMic.Div.| ° — | & AB. om. pee Se. Div. ° Mic. Div.| ° 
18 13 0 || 25 05-99] 534-6| 57-2 | 428-0] 57-5 || H | 21 21 O | 25 08-31 527-8| 51-8 || 456-6| 50-7 B 
14 0 09-51|| 529-0} 57-0 || 430-7| 57-2 || H 22 0 09-05 || 527-5] 51-4 || 450-4] 50-5 ||] W 
15 0 10:38 || 534-6| 56-8 || 406-3] 56-8 | H 23200 11-91 || 523-7] 51-2 || 452-0] 50-5 || W 
16 0} 09-73 || 539-5] 56-5 || 397-0| 56-5 | H | 22 0 0 14-46 || 528-0} 51-2 || 450-6] 50-7 || W 
ra 70 09-33 || 528-2} 56-3 || 385-2} 56-2 || H i * (0) 17-61 || 532-4} 51-2 |) 444-1] 51-0 || W 
18 0 06-56 || 545-4| 56-0 || 386-8] 55-8 || H 2e50) 17-17 || 537-T| 51-3 |) 451-1] 51-2 || W 
19 0 11-68 || 532-0) 55-8 || 400-0] 55-5 || W 3 0 15-24|) 541-6] 51-4 || 457-7) 51-5 || W 
20 0 12-80 || 526-2] 55-5 || 415-5] 55-2 || W 4 0 13-44 || 542-2] 51-6 || 458-9] 51-7 || W 
Bie 0) 10-97 || 534-1] 55-1 || 405-4) 54-8 | B 5 0 11-86 || 543-3] 51-7 || 459-3] 51-8 || W 
22 0 12-75 || 525-2] 54-8 || 419-2] 54-5 || W 6 0 10-87 || 544-0} 51-7 || 456-7| 51-8 || H 
DonenO 14-48 || 522-2| 54-7 || 421-4] 54.4 || W a0 11-24 || 544-7| 51-7 || 453-6] 51-6 || H 
19 90) <0 17:09 || 525-1| 54-6 || 426-5] 54-7 || W 8 0 10-87 | 545-7} 51-5 || 448-6] 51-3 || H 
1 O 16-46 || 530-4| 54-7 || 432-7] 55-1 || W 9 0 10-74 || 544-4] 51-3 || 448-3] 51-0 || H 
2.0 17-93 || 537-8| 55-0 || 443-2) 55-6 || W 10 O 08-99 | 542-6] 50-9 || 447-9| 50-5 || H 
ee s(t) 16-39 || 534-4] 55-6 || 463-5] 56-3 | W 1l O 09-96 || 541-8] 50-5 || 449-5] 49-8 B 
4 0 13-83 || 538-5] 56-1 || 480-5| 56-7 || W 12 0 10-14 || 541-7] 50-0 |) 449-5| 49.2 || B 
5.0 12-83 || 541-1} 56-6 || 486-9 57-3 || W 
G40 10-16 || 545-1] 57-0 || 475-5| 57-6 || H 13 O | 25 10-06 || 532-1] 49-5 || 451-2] 48-5 B 
v 0 09-93 || 545-5| 57-2 || 473-5] 57-3 || H 14 0 09-60 | 540-6} 48-9 || 453-5) 47-8 B 
8 0 09-74 | 540-0] 57-1 || 480-2] 57-2 || H 15) 0 09-42 | 540-3] 48-4 || 455-8] 47.2 B 
9 ot 25 07-44|| 528-4] 57-0 || 475-0] 57-0 || H 16 0 09:32 | 540-6] 47-9 || 456-2| 46-5 B 
10 Ot 24 59-09|| 538:3| 56-8 || 429.6) 56-8 || H 1220 09-53 |) 541-6] 47-3 || 457-8| 45-9 B 
11 0 || 25 05-77|| 525-3] 56-6 || 433-8] 56-5 || B 18 0 09-22 | 542-3] 46-7 || 459-0] 45-2 || B 
12 0 07-67 || 535-4| 56-3 || 431-6] 56-0 | B 19 O 08-82 | 540-9} 46-1 || 465-8] 44-7 | H 
20 0 07-87 || 536-8| 45-5 || 475-4] 44.2 || H 
13. 0 || 25 09-17|| 536-1] 55-9 || 440-3} 55-5 || B 2 10 07-47 || 531-1] 45-0 || 475-8| 43-8 || W 
14)5'0 09-08 | 535-8} 55-4 | 446-3} 54-8 B 22) 60 07-76 || 526-0} 44-7 || 470-2| 44-0 |} H 
ibe 18] 09-13 || 535-1} 54-8 || 450-6] 54-0 || B 23 0 09-77 || 525-9} 44-7 || 464-7] 44-2 || H 
16 0 08-25 )| 536-5| 54-1 || 450-3) 53-2] B | 23 0 O 12-67 || 528-7| 44-8 || 458-0] 44-8 || H 
17 O 06:46 || 534-6] 53-5 || 451-8] 52-3 B i 0) 15-44 |) 532-6] 45-0 || 455-0] 45-4 || H 
18 0 07-27 || 540-1} 52-9 || 450-3} 51-5 B 2 0 16-55 || 537-5| 45-5 || 456-6] 46-2 || H 
19 0 11-27 || 539-7} 52-2 || 451-7] 50-8 || H 3 0] 15-24 | 540-4] 46-1 || 462-2) 47-0 || H 
20 0 08-79 || 524-6} 51-7 |) 461-5} 50-3 || H 4 0 13-84 || 543-1] 46-9 || 464-5] 47-5 || H 
21 0 11-59 || 521-5] 51-3 || 463-7] 50-0 || W 5 0] 12-45 || 546-0] 47-6 || 464-0} 48-3 || H 
22 0 08-99 || 523-9) 50-9 || 465-9} 50-0 | H 6 0] 11-39 | 547-2} 48-2 || 460-7| 48-9 || B 
23 O 10-40 | 521-2) 50-9 || 469-0| 50-3 || W 7% 0} 11-17 || 549-7] 48-7 || 458-7} 49-1 B 
2p 0) 10 13-52|| 521-3} 51-0 || 463-9] 51-4 | H 8 oO} 10-74 | 548-4] 48-9 || 455-8} 49-2 B 
1 0 14-91 || 524-4] 51-6 || 437-7| 52-2 || H 9 0] 10-53 || 548-7] 48-8 || 452-1] 49-0 || B 
2 0 15-07 || 530-2} 52-2 |) 446-2) 52-8 || H 10 OO} 10-87 | 546-9} 48-5 || 447-2) 48-6 B 
30 14.67 || 534.5| 52-7 || 455-8] 53.7 || H 11 0] 10-65 || 546-3] 48-2 || 444.8] 48.2 || W 
4 0 13-25 || 535-1] 53-3 || 469-2] 54-5 || H eye ti) 08-95 | 551-9} 47-8 || 436-1] 47-6 || W 
5. (0 10-70 || 536-9| 53-7 || 476-4| 54-7 || H 
6 0:|| 10-47 || 542-3} 53-9 |) 463-4) 54-8 B 13. 0 || 25 09-19) 550-2] 47-4 || 439-6] 47-1 || W 
7 OM 10-04 || 545-2) 54-0 |} 451-8) 54-7 || B 14 0 08-83 | 549-6] 47-0 || 440-3) 46-5 || W 
8 oO] 09-82) 543-4] 53-9 || 449.5) 54-5 || B 15 0 08-26 | 546-0| 46-5 || 443-0! 45-9 || W 
9 0} 09-13 || 545-1] 53-9 | 451-6] 54-5 || B 16 0 06-59 || 543-0} 46-0 || 443-1] 45-3 || W 
10 ot) 04-22 || 540-0} 53-9 || 457-9] 54-6 B WG ea} 09-02 || 546-6| 45-5 || 437-5| 44-7 || W 
11 0| 01-78 || 527-8) 53-9 || 443-3) 54-7 |) WwW 18 0 05-13 || 546-9| 45-0 || 417-0| 44-2 || W 
12 0 09-39 || 533-8} 54-0 || 436-1} 54-7 || W 19 O 05-23 || 546-8] 44-5 || 421-7} 43-5 B 
| 20 0 06-27 || 541-4} 44-0 || 427-9] 43-0 || B 
21 13 0 || 25 08-66 || 539-1| 55-0 || 431-5) 55-2 || H 2iy 60 07:47 || 541-6] 43-7 || 440-2) 42-9 || H 
14 0O | 11-71 || 537-9| 54-7 || 433-6] 54.7 i H 22-0 09-05 || 526-1] 43-5 || 447-4] 43-2 || H 
15 0] 08-56 | 539-6 54-2 || 431-4] 54-0 || H 23° 0 12-01 || 522-3] 43-6 || 446-0} 43-8 B 
16 0 07-40 || 539-6 | 53-8 || 433-1] 53-2 || H | 24 0 O 18-84 | 535-7| 44-0 || 440-9! 44.7 || H 
17 0||  07-71|| 539-2| 53-3 | 437.0| 52-6 | H 1 0|| 18-84] 533-3] 44.9 | 451-9] 45-8 || H 
18 0 08-14 )} 539-0| 52-9 i 440-8| 52-1 H 2) 0))|| 18-67 || 546-3] 45-8 || 442-8) 46-8 B 
19 5 | 07-17 || 539-3) 52-5 | 445-4| 51-6 W 3.0 15-85 || 541-8] 46-8 || 450-4) 48-0 || H 
20 0} 06-90 || 536-0| 52-1 || 449-4] 51-1) W 4 0 14-01 || 543-4| 47-6 || 455-3) 48-7 H 
DECLINATION. Torsion removed, Sept. 214 22} + 19°.* Effect of + 10° of torsion = —0/-84. 
BirrLar. Observed 2™ after the Declination, s—=0:000140. BALANCE. Observed 3™ after the Declination, s=0-000010. 
Sept. 204 26». The floor of the Observatory washed : doors open throughout the day. 
* Sept. 214 22}, This change of torsion may possibly be due to the dampness arising from washing the floor on Sept. 20: the brass 
bar was suspended with some difficulty, but it is not conceived that much torsiun could have been thus introduced. 
+ Extra Observations made, 
