12 
Gottingen 
Mean Time of 
Declination 
Observation. 
a. 
May 24 
May 25 
May 26 
May 27 
May 28 
May 29 
May 30 
May 31 
h. 
18 
20 
2 
2 
0 
2 
4 
6 
8 
10 
18 
20 
22 
2 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0) 
0 
DAILY OBSERVATIONS OF MAGNETOMETERS, May 24—June 7. 1843. 
BIFILAR. BALANCE. 
DECLINA- 
TION. | Cor- |Thermo-|) Cor- |/Thermo- 
| rected. | meter. || rected. | meter. 
che | Se. Div. 3 Mic. Div. ° 
25 18-97 || 503-9| 47-3 || 667-9| 47-5 
18-52 || 497-3| 47-6 || 677-6| 47-5 
21-71 || 490-8} 48-3 || 661-1| 48-0 
29-33 || 488-8| 49-8 || 625-1 49-2 
33-54 || 499-8] 50-8 || 622-4) 50-0 
29-89 || 507-6| 51-1 || 649-7| 50-4 
24-60 || 511-4] 51-1 || 676-8| 50-5 
23-79 || 510-8| 51-3 || 670-9] 50-7 
24-17 || 511-5| 51-0 || 664-7| 50-5 
25 19-80 || 504-7| 49-1 || 665-2) 48-9 
19-39 || 500-8| 50-3 || 663-3] 49-8 
20-54 || 491-3] 52.0 || 652-0} 51-1 
29-36 || 496-0| 54-2 || 632-8] 53-0 
33-94 || 503-4| 56-3 || 619-5| 55-2 
28-54 || 513-5| 57-7 || 635-4) 56-5 
25-95 || 517-7| 58-4 |) 655-2] 57-1 
22-45 || 515-0| 57-3 || 676-6| 56-5 
17-61 || 473-2| 55-9 || 578-3) 55-5 
25 17-04 || 504-3} 54-4 || 649-9] 54-4 
16-41 || 490-8| 53-8 | 661-1| 54-0 
20-67 || 478-5| 53-8 || 656-5| 54-0 
27-76 || 489-1] 54-9 || 641-3| 54-9 
29-98 | 504-5| 55-3 || 644-8) 55-4 
27-43 || 514-8] 55-7 || 663-4] 55-5 
23-91 514-5| 56-6 || 670-2| 56-2 
22-65 || 514-1| 56-3 || 671-8) 56-0 
21-96 || 508-8| 55-7 |) 671-4] 59-8 
25 19-22 || 503-1] 45-8 || 663-5| 46-4 
18-21 || 495-5} 46-1 || 678-9| 46-5 
19-47 || 489-5| ~46-9 || 659-2| 47-0 
26-62 || 495-4| 49-6 | 632-6] 49-0 
30-99 || 525-2| 52-7 || 619-0] 51-5 
33-38 || 516-9] 54-0 || 642-1) 52-7 
27-96 || 522-6] 53-9 || 660-6] 53-0 
24-24 || 523-9] 53-7 || 677-2| 52-9 
24-72 || 510-2| 52-7 || 667-2| 52-1 
25 28-67 || 509-6| 46-8 || 615-9| 47-2 
24-53 || 493-3| 46-8 || 646-0) 47-2 
21-35 || 487-7| 48-0 || 651-1] 48-0 
27-02 || 492-3| 50-0 || 642-1| 49-5 
30-51 501-8| 53-7 || 643-1) 52-4 
29.31 509-6| 55-8 || 653-9| 54-2 
25-52 || 512-3) 55-0 || 674-0| 54-0 
24-47 || 513-3| 54-0 || 674-9) 53-3 
24.67 || 507-8| 52-7 || 667-3) 52-5 
25 21-14 || 499-7] 48-8 || 662-8] 49-0 
20-63 || 496-5] 48-2 || 669-3| 48-5 
22.36 || 486-1| 48-0 || 654-8] 48-4 
26-79 || 491-3] 48-4 || 632-7) 48-5 
30-90 || 506-3| 48-9 || 649-4| 49-8 
28-94 || 509-7] 49-6 || 658-0) 49- 
25-46 || 512-3] 49-9 || 670-4) 49-5 
24-06 || 513-1} 50-0 || 668-2| 49-6 
23-93 || 510-5| 49-7 || 666-4) 49-4 
Gottingen BIFILAR. BALANCE. | 
Mean Time of DEcLiINa- || ————_———— - 
Declination TION. Cor- |Thermo-| Cor- |Thern 
Observation. I rected. | meter. || rected. 
ah. om ie Fe || Se. Div. 3 Mic. Div. 
May 31 18 O| 25 22-72 | 504-1] 47-8 || 672-7 
20 0 19-09 | 496-9| 47-8 || 671-2 
22 0 21-24 | 481-4] 48-2 | 666-5 
June 1 0 O 28-21 || 488-9) 49-0 | 640-3 
Zi 50 34:50 | 500-5| 49-7 || 645-9 
4 0 31-04 | 511-3) 50-0 | 656-4 
6 0 25-66 || 513-1| 50-2 || 670-4 
8 0 24-06 || 514-1] 50-2 || 662-7 
10 0 25-18 || 511-9| 50-0 | 665-1 
18 0} 25 21-24 || 508-1| 49-0 || 671-6 
20 O 19-06 || 503-8) 49-8 || 670-6 
22, 10 22-45 | 490-0| 51-7 || 657-1 
June 2 0 O - 30-39 || 493-7] 53-7 || 625-6 
2,0 33-94 || 504-5| 56-0 || 633-0 
4 0 32-57 || 505-2| 56-3 || 652-6 
6% 10 26-97 || 511-5| 55-1 || 679-3 
8 0 25-39 || 521-2| 53-9 || 663-7 
10 0 25-88 || 518-4) 52-8 || 651-3 
18 O] 25 19-36 |) 502-2) 49-7 || 646-4 
20 0 15-79 || 493-8] 49-4 || 653-1 
22 0 34-85 || 491-8| 49-4 || 629.3 
June 3 0 O 30-46 || 495-7| 49-9 || 638-4 
2, 0 33-42 || 498-5| 50-6 | 641-2 
4 0 31-50 || 500-5| 50-3 || 679-7 
6 0 28-41 || 508-5| 49-8 || 680-0 
8 0} 25-63 || 512-8) 49-0 || 695-6 
10 O 24-20 || 504-5) 48-1 || 673-5 
June 418 0] 25 21-56 || 501-7) 46-3 || 623-6 
20 0 23-16 || 492-6| 46-1 || 655-0 
225 0 26-42 || 488-6| 46-0 || 656-1 
June 5 0 O 29-31 || 487-6| 46-0 || 643-3 
Die 10 27-96 || 497-2| 46-1 || 649-2 
4 0 27-58 || 516-6] 46-1 || 657-7 
6 0 24-67 | 505-8| 46-0 || 675-7 
8 0 26-01 || 512-4| 45-6 || 671-5 
10 0 25-68 || 505-4] 45-1 || 672-2 
18 0O|| 25 20-41 || 497-7| 44-2 || 645-8 
20: (0. 21-95 || 496-1] 44-9 || 665-4 
22. 0 23-36 || 493-5) 46-4 || 649-4 
June 6 0 O 27-40 || 492-0) 47-8 |) 643-5 
2 0 29-21 || 502:0| 49-1 || 636-1 
4 0 26-97 || 506-9} 50-9 || 657-7 
G7 (0 » 25-98 || 508-9| 51-6 || 662-8 
8 0 25-22 || 515-2) 51-9 || 660-5 
10 0 24-60 || 509-9| 51-7 || 664-7 
18 0O|| 25 21-42 || 502-9] 49.4 || 642.7 
20 O 20-30 || 499-2| 50-2 || 659-4 
22 0 22-27 || 490-9) 52-0 || 657-2 
June 7 0 O 27-76 || 498-6| 53-2 || 650-3 
2 0 27-61 || 511-8} 55-4 || 650-4 
4 0 29-11 | 507-7| 57-1 || 657-5 
6 0 25-01 || 514-0| 57-1 || 683-7 
8 0 25-51 | 518-5] 57-0 | 686-9 
10 0 32-35 || 510-1| 56-2 || 642-8 
DECLINATION. ‘Torsion removed, circle reading,—May 264 3h, 229° ;* 294 3h, 246°; June 74 1», 253°. 
Birizark. k=0'0001205. 
BALANCE. 
k=0:000015 approximately. 
* May 264 34, Two fibres of the suspension thread of the Declinometer found broken. 
