DAILY OBSERVATIONS OF MAGNETOMETERS, SEPTEMBER 27—OcTOBER 11. 1843. 21 
Gottingen BIFILAR. BALANCE. Gottingen BIFILAR. BALANCE. 
Mean Time of DECLINA- Mean Time of DEcLINA- 
Declination TION. Cor- |Thermo-|| Cor- |Thermo. Declination TION. Cor- |Thermo-|| Cor- |Thermo 
| Observation. rected. | meter. || rected. | meter. Observation. rected. | meter. || rected. | meter. 
Siam Dh.).) IH, = 4 Sc. Div. - Mie. Diy. < ad hy m. ie i Se. Diy. Y Mice. Diy. C 
Sept. 27 18 0} 25 20-32 || 507-6 | 45-9 || 759-7 | 46-5 | Oct. 4 18 0] 25 23-46 || 511-4 | 58-1 || 737-3 | 58.3 
: 20 0 22.20 | 506-4 | 45-1 || 780-3 | 45-9 20 0 23-86 | 506-2 | 57-9 || 747-0 | 58-0 
3 22. 0 23-66 ||478-5 | 45-3 || 822-2 | 45-9 22 0 23-93 || 486-7 | 57-9 || 781-0 | 57-9 
Sept.28 0 0 31-36 ||480-1 | 47-3 ||823-9 | 47-2 ]Oct. 5 0 O 32-53 ||493-6 | 58-2 || 770-2 | 58-1 
; 2 0 30-89 || 501-2 | 50-0 || 838-2 | 49-1 2 0 30-69 || 505-4 | 60-0 || 782-8 | 59-1 
4 0 28-70 |511-6 | 51-5 || 855-4 | 50-3 4 0 27-33 ||513-2 | 61-6 || 798-4 | 60-4 
6 0 23-06 || 512-4 | 51-9 || 847-0 | 50-7 6" 0 25-31 || 505-2 | 61-5 || 849-6 | 60-5 
t 8 0 22.25 1510-4 | 51-0 ||832-2 | 50-4 8 0 11-05 || 507-4 | 60-8 || 802-9 | 60-3 
p 10 0 20-57 | 509-4 | 50-0 || 835-2 | 49-9 10 0 19-67 | 506-0 | 60-1 || 766-3 | 60-0 
18 0} 25 20-79 ||/504-7 | 44-9 ||809-1 | 45-9 18 0|| 25 22-83 | 503-2 | 58-7 || 746-7 | 58-5 
20 0 21-39 || 504-8 | 43-9 ||§20-4 | 45-0 20 0 20-50 || 501-4 | 58-7 || 777-2 | 58-5 
22 0 20-79 ||493-2 | 44-1 || 847-3 | 45-0 22 0 21-34 || 490-9 | 58-7 || 779-0 | 58-5 
ept.29 0 0 25-05 ||495-4 | 46-2 ||812-5 | 46-4 | Oct. 6 0 O 28-50 ||491-3 | 59-2 || 765-6 | 58-9 
; 2 0 27-29 || 508-4 | 50-0 || 812-0 | 49-0 2 0 27-60 || 506-2 | 60-6 || 782-3 | 59-9 
4 0 26-45 ||519-7 | 51-9 || 817-7 | 50-5 4 0 23-17 ||512-4 | 61-1 || 790-7 | 60-5 
6 0 23-83 515-7 | 52:3 ||842-1 | 51-1 6 0 20-41 ||506-6 | 61-1 || 785-4 | 60-7 
8 0 17:99 ||502-9 | 52-1 || 854-3 | 51-1 8 0 21-35 ||508-6 | 60-7 ||'775-7 | 60-4 
10 0 21-10 | 511-4 | 51-9 || 831-5 | 51-1 10 0 18-73 || 502-2 | 59-9 || 775-1 | 59-8 
18 0}| 25 19-36 |/513-8 | 51-9 || 778-4 | 51-4 18 0O]] 25 21-29 ||502-8 | 56-7 |'757-1 | 57-0 
20 0 23-14 || 506-8 | 52-2 || 795-1 | 51-7 20 0 20:37 || 504-3 | 56-4 || 775-2 | 56-6 
22 0 22-25 | 508-2 | 53-6 || 791-7 | 52-8 22 19 22-35 ||489-1 | 56-9 || 782-4 | 57-0 
ept.30 0 0 25-38 || 502-2 | 56-7 || 782-8 | 55-5 | Oct. 7 O O 26-28 ||492-8 | 58-1 ||775-1 | 57-9 
2 0 24-85 || 500-8 | 60-0 || 793-4 | 58-2 2 0 27-43 ||504-7 | 60-0 || 767-4 | 59-2 
, 4 0 26-43 || 514-9 | 61-9 || 789-0 | 60-0 4 0 24:06 || 513-5 | 62-0 || 776-5 | 61-0 
1 6 0 23-93 | 504-9 | 62-6 |) 824-4 | 61-0 6 0 22-16 | 512-5 | 62-0 || 765-9 | 61-0 
8 0 23-14 511-3 | 61-8 || 801-7 | 60-6 8 0 21-48 || 511-6 | 60-5 || 761-6 | 60-0 
10 0 20-63 || 512-9 | 60-8 || 782-4 | 60-1 10 0 21-32 ||507-1 | 59-1 || 767-6 | 59-3 
et. 118 O|| 25 21-24 | 504-1 | 57-0 || 764-3 | 57-6 | Oct. 8 18 O|| 25 21-71 || 505-4 | 48-3 | 806-6 | 49.2 
; 20 0 23-53 497-9 | 56-1 || 779-5 | 56-9 20 0 19-87 || 505-7 | 47-7 ||815-1 | 48-5 
22 0 23-21 ||494-2 | 56-1 ||791-0 | 56-6 22 0 21-04 || 492-7 | 47:8 |) 820-1 | 48-4 
ct. 2 0 0 27-47 ||498-4 | 57-0 || 789-5 | 57-2 | Oct. 9 O O 25-18 ||489-6 | 49-1 ||822-1 | 49-2 
4 2 0 28-15 | 503-1 | 58-6 || 792-2 | 58-1 2 0. 27-94 ||499-3 | 50-2 | 810-1 | 49-9 
4 0 23-27 ||489-9 | 59-7 || 811-1 | 59-0 4 0 25-22 ||506-9 | 50-8 | 814-6 | 50-3 
6 0 23-39 510-8 | 60-0 || 801-6 | 59-2 6 0 21-37 ||508-3 | 50-7 ||822-1 | 50-1 
8 0 21-32 | 509-0 | 58-7 || 805-4 | 58-4 8 0 23-17 || 513-8 | 50-1 || 814-5 | 49-9 
10 0 22-30 | 505-3 | 57-0 || 797-3 | 57-1 10 0 21-84 | 510-7 | 49:7 |814-6 | 49-6 
18 0} 25 22-16 | 506-5 | 51-6 || 792-6 | 52-2 18 0] 25 21-98 | 511-7 | 47-7 ||812-8 | 48-0 
20 0 31-04 497-6 | 51-2 || 768-6 | 51-7 20 0 25-48 || 505-5 | 47-2 || 823-3 | 47-6 
22 0 25-19 ||497-4 | 51-5 || 789-5 | 51-5 22 0 23-10 || 499-1 | 47-2 ||819-2 | 47-5 
t 3 0 0 31-32 ||493-9 | 52-6 ||824-3 | 52-4 | Oct. 10 0 O 24-60 | 494-0 | 47-7 || 811-2 | 47-8 
2 0 28-15 | 506-0 | 54-3 | 801-3 | 53-6 2 0 29-29 || 508-4 | 48-7 || 808-5 | 48-5 
4 0 25-43 | 507-0 | 55-7 || 806-5 | 54-9 4 0 26-52 ||509-0 | 49-9 || 810-1 | 49.3 
6 0 22-62 | 508-5 | 56-0 || 808-8 | 55-4 6 0 23:06 | 512-4 | 50-1 | 811-8 | 49.5 
| oy 8 0 18-53 | 506-4 | 56-0 || 810-9 | 55-4 8 0 19-63 ||505-5 | 49-3 |/818-8 | 49.0 
10 0 20-88 | 511-7 | 55-7 || 798-2 | 55-2 10 0 15-74 ||499-9 | 48-1 || 809-2 | 48.3 
b 18 0} 25 23-32 || 503-2 | 53-8 || 794-7 | 54-0 18 0} 25 21-96 ||510-5 | 45-2 ||808-7 | 45-9 
20 0 21:37 | 505-5 | 53-6 || 804-2 | 53-5 20 O 21-24 | 504-4 | 44-9 |/819-8 | 45-5 
22 0 23-17 |498-6 | 53-9 || 812-5 | 53-9 22 0 19-93 | 494-6 | 44-9 [818-4 | 45-2 
4 0 0 27-51 ||500-3 | 55-9 || 812-1 | 55-0 | Oct. 11 0 O 25-36 ||497-6 | 44-9 || 805-6 | 45-3 
2 0 30-02 || 512-6 | 57-9 || 801-1 | 56-8 2 0 26-64 || 504-3 | 45-1 || 811-1 | 45-5 
i 4 0 25-14 | 519-3 | 60-3 || 803-1 | 58-8 4 0 25-19 ||517-1 | 45-3 ||819-2 | 45-5 
6 0 21-59 ||513-8 | 61-3 || 789-6 | 59-8 6 0 23-16 || 514-5 | 45-3 || 819-9 | 45-5 
8 0 22-96 | 515-0 | 61-0 || 781-3 | 60-0 8 0 22-32 |/513-0 | 45-0 || 821-3 | 45-4 
10 0 21-02 510-5 | 60-5 || 781-2 | 59-8 10 0 21-42 ||513-7 | 45-0 || 815-6 | 45-2 
DECLINATION. Torsion removed, circle reading,—Oct. 64 14, 88°. 
BirizarR. k=0:0001205. BaLANcE. k=0:000013 approximately. 
F 
MAG. AND MET. ons. 1843. 
