52 Extra OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 24—Mancu 6. 1848. 
DecuinaTion. |  BIFILaR, BALANCE. | DectinaTion., |  Brrinar. BALANCE, | 
mac I Mets 'rpual| Gc cee | en ae ee a | 
gotten | Min Reading | Min.| Reading | Min.| Reading Bae aaa | Min.) Reading ‘Min,) Reading || Min. ng | 
of | Reduced. of Cor- || of Cor- of | Reduced. || of Cor- of | 
Obs. | Obs. rected. || Obs.| rected. Obs. One. rected. || Obs. | 
ah | mle « | m. | Sc.Div. || m. | Mic. Div. d. h. | mew eee | m, | Se.Div. || m. ieDivs | 
Feb. 24 9 | 30 | 25 21-53) 32) 5265 | 33 | 806-9 | Mar. 6 6) 0 | 25 28-10) 2) 535-1 3 | 
35 21-51] 37 | 526-5 || 38 | 806-2 | 15 26-28 || 17 | 526-3 | 18 5 | 
40 20-57) 42 | 527-0 | 43 | 804-8 20 24-11] 22 | 531-9 | 23 |- 7584 
45 19-04, 47 | 527-4 | 48) 798-1 25 22.82 27 | 538-3 | 28 | 754s 
50 18-41 || 52 | 527-4 || 53 | 800-0 30 22-92] 32) 541-8 | 33 | 754.40) 
55 18-89|, 57 | 525-9 | 58 | 785-3 35 23-29) 37 540-4 | 38 | 7548 
Feb. 24 10 || 0 20-16] 2) 527-0 3 | 783-2 40 22:06 | 42 | 541-0 | 43 | 755. 
| —|} 45 21-21] 47 | 540-0 | 48 | 7554 
Feb. 25 10 || 0 | 25 16-40) 2| 544-3 3 | 743-2 50 19-71|| 52 | 541.5 | 53 | 757: 
5 9-84|| 7 | 559-0 8| 736-4 55 19-54 
10 8-40] 12 | 567-3 | 13 | 730-0 | Mar. 6 7] 0 20:08 2) 543-4 3 | 757-6 | 
15 10-32|| 17 | 563-3 || 18 | 730-9 15 23-41|| 17 | 540-4 | 18 | 759s 
20 11-82|| 22 | 556-5 || 23 | 729-4 25 21-32] 27 | 538-4 | 28 | 759.0 
25 13-17] 27 | 549-0 | 28 | 731-5 30 22.25 ’ 
30 14-78 || 32 | 538-4 | 33 | 737-7 | Mar. 6 8] 0 25-75 || 2| 542-3 3 | 760-4 
35 16-89 | 37 | 523-9 || 38 | 742-3 15 26-62) 17 | 536-7 | 18 | 762-2 
40 15-96 42 | 516-5 || 43 | 744-9 30 25-92 || 32 | 533-8 | 33 | 765-4 
45 18-92 47 | 508-3 || 48 | 751-2 45 26-53 47 | 535-7 | 48 | 7654 
50 21-07] 52 | 508-3 | 53 | 752-5 | Mar. 6 9] 0 23-03 || 2| 539-4 3 | 7594 
5s) 21-89] 57 | 511-0 | 58 | 752-3 10 19-19] 12 | 544-5 | 13 | 758% 
Feb. 25 11 || 0 22-45] 2] 515-7 3 | 750-0 15 14-29] 17 | 544-9 | 18 | 758 
5 23.23]; 7 | 519-4 8 | 744-5 20 10-73 || 22 | 552-2 || 93 | 75ae 
10 93.44], 12 | 518-7 || 13 | 743-8 25 13-91| 27 | 555-1 | 98 | 7414 
15 21-98] 17 | 522-5 || 18 | 742-3 30 17-98 || 32 | 545-1 | 33 | 737% 
20 20-13 || 22 | 530-5 || 23 | 737-7 35 16-64) 37 | 538-7 | 38 | 734 
25 19-27|| 27 | 535-1 | 28 | 737-7 40 15-20| 42 | 544-5 | 43 | 733 
30 18-75 || 32 | 536-8 || 33 | 732-8 45 14-65 | 47 | 949-8 | 48 | 728: 
35 18-46 || 37 | 536-0 | 38 | 732-8 50 16:10) 52 | 544-4 | 53 | 728: 
40 18-12] 42 | 540-4 || 43 | 733-1 55 15-86 || 57 | 9542-2 | 58 | 729 
45 19-26|| 47 | 541-9 || 48 | 732-2 | Mar. 610] 0 15-23 || 2| 536.4 3 | 726: 
50 20-40] 52 | 541-0 | 53 | 730-2 5 15-52) 7 | 532-0 8 | 728: 
55 20:87 || 57 | 539-5 || 58 | 729-7 10 14-51] 12 | 525-8 | 13 | 725 
= 15 13-3217 | 526-9 || 18 |) 715 
Mar. 4 10|| 0/| 25 19-81] 2) 534-8 3| 755-4 20 16-10 || 22 | 518-6 || 93 | 707 
5 21-19] 7 | 532-3 8 | 756-4 25 18-99 || 27 | 507-5 || 98 | 704 
10 22:03] 12 | 531-7 | 13 | 756-4 30 15-32| 32 | 514.0 || 33 | 703 
20 19-70|| 22 | 537-2 | 23 | 744.9 35 15-86 || 37 | 523-0 | 38 | 694 
| 25 17-34|| 27 | 541-8 || 28 | 735.4 40 18-32|| 42 | 528.4 | 43 | 696 
30 14-35) 32 | 542-3 || 33 | 729-1 45 20-00 || 47 | 534-2 | 48 | 699 
35 13-81]| 37 | 532-1 || 38 | 730-3 50 19-71] 52 | 525-5 || 53 | 699 
40 13-07 || 42 30-9 | 43 | 732-2 55 15-70) 57 | 529-0 | 58 | 700 
45 14-28|| 47 | 535-2 || 48] 728-8 | Mar. 6 11] 0 12-51|| 2] 527-1 3 | 694 
50 18-12} 52 | 537-4 || 53 | 728-2 5 9-49) 7 | 530-2 8 | 678 
55 22-251 57 | 534-8 | 58 | 726-5 10 8-23) 12 | 519-1] 13 | 66% 
Mar. 4 11]} 0 23-23], 2) 530-3 3] 725-4 15 6-45|| 17 | 513-9 | 18 | 664 
15 21-17] 17 | 532-7 | 18 | 724-1 20 4:45 || 22 | 522:7 | 93 | 69 
20 20-43 || 22 | 531-7 | 23 | 723-5 25 4:08 || 27 | 522-7 || 98 | 672 
30 18-79 | 32 | 527-7 | 33 | 734-2 30 5-70] 32 | 520-2 | 33 | 676 
40 19:07 || 42 | 525-8 || 43 | 740-9 35 7:08 37 | 517-0 | 38 | 67% 
50 19:09) 52 | 533-3 || 53 | 741-1 40 7-26 42 | 514-1 | 43 | 677m 
Mar. 412] 0 19-96) 2| 532.4 3) 745-0 45 7-08 | 47 | 512-3 | 48 | 68] 
- - 50 7-55|| 52 | 517-7 | 53 | 687 
Mar. 5 18 || 0 | 25 22.96] 2| 528-4 || 3] 729-4 | 55 8-98 | 57 | 522-2 | 58] 691 
; 30 25.54 32 | 531-8 | 33 | 719-2 | Mar. 6 12] 0 10-92 2| 524.6 | 3) 70a 
Mar. 5 20] 0 30-37], 2] 537-3 3] 712-2 D 12:58] 7 | 524.5 8 | 70 
Biritar. k=0-0001248. Batance. k=0:000015 approximately. 
BiriLar THERMOMETER. 
5 53°-0 50°°7 55°-8 56°6 
BALANCE THERMOMETER. } BOCA ME Sr {Bae ASIEN, peat Sa: ie EE { 58°0° 
Feb. 24410. TPor the continuation of these observations, see the Term Observations. 
Feb. 254 105, Continued from the Term Observations. 
