TERM-DAY OBSERVATIONS OF MAGNETOMETERS, 1843. 47 
DEcEMBER 20, 21. 
D 1 DEcLINA- BIrILaR | BALANCE DECLINA- BIFILaR | BALANCE DEcLINA- Brrinak | BALANCE DEcLINA- Brritan | BALANCE 
0 TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected. | Corrected. TION. Corrected.| Corrected. 
f : ° 4 Sc. Div. e Se. Div. Be Ui Mic. Div.} Sc. Div. | Mic. Div. 
f 18h, 22h, oh 6, 
: 25 18-53 | 520-4 25 17-27) 516-2 517-7 840-7 | 25 20-63] 516-5 841-2 
: 18:55 | 520-6 17-31 | 516-0 517-8 841-8 20-79 | 515-6 840-1 
1 18-46 | 520-2 17-27 | 515-9 517-8 Fy 20-63 | 516-2 840-1 
Pa 18-52 | 520-3 17-41] 515-8 517-8 844-3 20-61 | 515-7 839-8 
[ 18-55 | 520-1 17-58 | 515-7 517-9 a 20-61 | 514-7 840-0 
i 18-63 | 520-2 17-64 | 515-9 518-2 842-7 20-55 | 513-9 “ 
t 18-63 | 520-1 17-74| 516-0 518-8 845-5 20-30} 514-2 839-7 
j 18-55 | 520-2 17-86 | 515-7 518-2 843-8 20-13 | 513-7 839-8 
a 18-72 | 520-0 17-88 | 515-3 518-7 844-5 19-76 | 513-1 840-0 
18-62} 520-1 17-92} 515-2 518-9 844-6 19-76} 514-4 839-9 
H 18-68 | 520-0 17-98 | 515-4 518-7 * 19-81] 514-3 iN 
| 18-68 | 519-4 18-21] 515-2 518-6 843-9 19-94} 513-0 840-6 
' 198, 230, 3h, 7, 
0 25 18-55 | 520-0 18-35 | 515-0 518-5 843-9 | 25 19-74) 513-7 os 
| 5 18-57 | 520-1 18-41 | 515-5 518-5 ay 19-60} 513-4 841-7 
10 18-55 | 520-0 18:52} 514-8 518-6 843-0 19-80} 513-2 843-2 
; ifj 18-68 | 519-5 18-68 | 514-7 518-7 a 19-83 | 513-4 842-3 
' 20 18-62} 519-6 18-63 | 514-5 | 518-5 843-0 19-27) 514-9 oy 
j 25 18-62} 519-6 18-70 | 514-7 518-9 oe 19-84 515-8 840-5 
30 18-55 | 519-7 18:79 | 514-6 519-0 843-1 19-89} 515-2 840-1 
| 35 18-55 | 519-3 19:07 | 514-6 518-3 a4 20-10} 515-5 840-8 
| 40 18-55 | 519-1 19-15) 515-3 518-1 842-1 20-01} 515-4 839-2 
| 45 18-50 | 519-2 19-06} 515-0 518-0 ” 19-83 | 516-3 835-7 
50 18-35 | 519-2 19-36] 514-1 518-3 sy 20-32} 516-3 “A 
| 55 18-35 | 519-2 19-06 | 514-3 518-5 | 841-3 19-86| 516-1 834-6 
| 204, on. 4h, 8h, 
0 25 18-41] 518-7 19-22| 513-7 518-9 | 840-0 | 25 20-21) 515-3 835-4 
im 5 18-33 | 518-8 19-36 | 514-1 519-4 PA 19-83 | 514-9 835-3 
10 - 18-16} 518-7 19-33) 514-0 518-9 840-1 19-83 | 514-5 835-4 
165 18-01) 518-4 19-36 | 513-9 518-1 59 19:40} 513-5 836-0 
20 18-01} 518-3 19-39 | 514-0 516-7 839-6 19-06 | 512-5 a 
| 25 18-01 | 518-3 19-65 | 514-0 516-8 839-9 18-50 | 514-1 833-5 
30 18:01} 518-3 19-42} 514-0 518-8 Fy 18-13 | 514-5 833-4 
| 35 18-01} 518-0 19-78} 514-4 519-9 838-7 17-83 | 513-4 834-1 
| 40 17-92) 518-1 19-93 | 514-8 521-3 838-8 17-25 | 514-1 831-1 
| 15 17-92 | 518-2 19-93 | 515-4 519-7 840-4 17-22| 515-1 830-1 
50 17-88 | 518-0 20-38 | 515-7 517-6 841-1 17-88 | 514-6 832.8 
+65 17-88 | 517-9 20-67 | 515-5 517-3 os 18-01 | 512-7 34-3 
21, 1, 5h gh, 
0 25 17-81 | 517-3 20-63 | 515-5 517-0 | 840-0 | 25 17-64| 514-0 833-8 
5 17-67 | 517-5 20-67 | 515-7 517-4 PA 17-67 | 515-0 831-0 
| 0 17-67 | 517-6 20-70| 515-6 517-6 841-1 17-54 | 514-9 830-6 
1s 17-56 | 517-3 20-70 | 515-7 517-1 841-8 17-20 | 515-1 829-4 
20 17-49 | 517-3 20-67 | 515-9 518-2 5 17-27) 515-5 829-3 
20 17-45 | 517-2 20-68 | 516-3 515-5 844-3 17-47 | 514-8 829-9 
| 30 17-38 | 517-0 20:82} 516-4 515-4 on 17-29 | 514-8 831-2 
86 17-32 | 516-8 20-75 | 516-6 517-3 a 17-34 | 514-7 830-6 
» 40 17-27 | 516-7 20-97 | 517-3 518-0 842-1 17-34 | 514-2 829-2 
: B 17-27 | 516-8 21-08 | 516-8 40- 517-7 5 17-12} 513-7 829-2 
; 0 17-24| 516-4 20-72) 516-8 840-6 20-43 | 517-8 841-5 13-84 | 515-3 822-9 
i : . 20-82) 516-9 841-7 20-43 | 518-7 841-3 9-85 | 518-4 821-6 
Hour, : a | 22 ]23 | o | 1 | 2/3] 4 | Suleul eel ins | 9 | 10 
Biritar Tuermomersr, . | 57-0 | sro | 670 | 672 | 67-0 | 56-4 | 56-1 | 561 | 56-4 | 667 | sr0 | 56:8 | 563 | 560 | 55-4 | 55-0 | 546 
LANCE THERMOMETER, | 59:3 | 591 | 59:5 | 59 | 50-2 58-4 | 58:5 58:5 | 586 59.0 | 590 | 58-6 58-2 a7-6 | 57-0 56:3 | 55-7 
RVER’S INITIAL, . . D | D D WwW WwW W W W | H H B B D D D WwW 
BIFILAR. 
BALANCE, 
Observed 2™ after the Declination. 
Observed 3™ after the Declination. 
k=0-0001300. 
k=0:000014 approximately. 
