326 Extra OBSERVATIONS OF MAGNETOMETERS, JANUARY 7—Marcu 14, 1846. 
Gott. < Gott. c Gott. 
Mean DECLINATION. ey premreahicy Mean DECLINATION, iene eee Mean DECLINATION, |} — 
Time. Time Time. 
a; oh. Min. ” z Min. | Se. Diy. || Min. | Mic. Div. ad. h Min. 3 ip Min, | Se, Div. |} Min. | Mic. Div d. oh. |} Min 
Jan. March. 
“6 0 | 25 00.28 2 | 532.4 3 10 | 25 06-53 |} 12 | 531-6] 13 | 421-0] 13° 7 0 
30 | 24 55-22|| 32 | 545-1] 33 35 | 25 06-70) 37 | 532-1]) 38 | 415.4 30 
47 | 25 01-21 || 48 | 533-8 | 49 11 | 24 58-65]! 12 | 543-3) 13 | 398-4] 13 8 0 
7 ef 0 01-18 2 | 539-5 3 19 58-11 || 20 | 550-8 || 21 | 408-7] 13 10 0 
15 06-14 || 17 | 544-5) 18 —|——_|——— — - 5 
“8 0 07-64)) 2 | 551-5 3 0 | 25 07-37 2 | 546-4 3 | 418-0 10 
30 02-96 || 32 | 539-4 || 33 | 429.5 15 
7 13 0 | 25 09-67 2 | 541-4 3 45 05-72 || 47 | 539-6 || 48 | 427-6 20 
40 06-06 || 42 | 545-2|| 43 0 06-86 2 | 545-2 3 | 418-3 25 
7 14 0 03-65 2 | 545-2 3 5 06:79} 7 | 544-0 8 | 393-1 30 
a Se ess) a 0 02-35 || 2 | 541-4 3 | 382.4 35 
23 20 0 | 25 26-37 2} 559-1 3 —_|—_—|—_ — 40 
10 26-47 || 12 | 562-6|| 13 45 
23 | 533-4 || 24 0 | 25 00-28 2 | 562-3 3 | 360-5 50 
25 17-39 || 27 | 536-8 || 28 10 03-70} 12 | 551-9) 13 | 360-9] 13 11 0 
40 11-27 || 42 | 546-1} 43 20 05-72 || 22 | 547-3) 23 | 362.9 51 
23 22 0 | 25 19-86 2 | 537-9 3 — —— -—— ——— 
0 | 24 58-55 2 | 549-8 3 | 370-8] 13 18 0 
24 7 0 | 24 49-54 2 | 512-8 3 0 | 25 00-40); 2 | 551-7 3 | 369-2] 13 19 | 17 
5 43-52 7 | 520-3 8 12 10 0 03-82 2 | 553-8 3 | 364-5 25 
10 39-19} 12 | 525-9}|) 13 || —_ ———_ —— 30 
15 34-82] 17 | 535-7 || 18 0 | 25 22.96 2 | 541-4 3 | 363-2 35 
20 36-99 | 22 | 543-2|) 23 5 21-:09|| 7 | 545-5 8 | 364-2 40 
25 39-04 || 27 | 542-9|) 28 15 19-59 || 17 | 545-0] 18 | 371-5 45 
30 39-65 || 32 | 541-6]| 33 35 17-29 || 37 | 546-0 || 38 | 385-8 50 
45 43-42 || 47 | 561-0}) 48 0 21-09 2 | 545-2|| 3 | 402-8] 13 20 0 
24 8 0 53-15 2 | 559-9 3 25 21-59 || 27 | 538-7 || 28 | 423-6 10 
24 9 0 | 24 57-01 2 | 530-5 3 46 25-78 || 47 | 559-4]! 48 | 431-4 20 
24 10 0 | 25 02-13 2 | 533-7 3 50 26-30 || 52 | 556-5 || 53 | 435-3 30 
pelts. 2 —s —— 55 24-93 || 57 | 567-2|| 58 | 435-8 40 
Feb. 0 26-18 2} 559-8|| 3 | 437-1] 13 22 0 
8 23 0 | 25 08-85 2 | 556-8 3 10 25-96 || 12 | 553-2] 13 | 453-6] 14 2 0 
5 10-75 7 | 554-4] 8 20 20-52 || 22 | 555-1 }| 23 | 459-8 45 
15 12-38 || 17 | 550-2} 18 25 20-96 || 27 | 564-2]| 28 | 458-3] 14 3 |) 25 
20 12-82 || 22 | 552-7 || 23 35 22.53 || 37 | 563-0) 38 | 462-5 30 
30 12-35 | 32 | 552-6]| 33 50 21-79 || 52 | 563-9 || 53 | 482-7 35 
9 0 0 11-22 2 | 552-0 3 0 19-41 2 | 556-7 3 | 489-0 40 
SS a |_—_—_— 10 20-52 || 12 | 545-7 || 13 | 500-8 45 
15 20 0 | 25 16-65 2 | 555-0 3 15 17-80 || 17 | 552-7 || 18 | 500-8 50 
25 11-34 || 27 | 551-4 || 28 25 19-95 || 27 | 558-1 ]| 28 | 490-9] 14 4 0 
15 22 0 10-74 2 | 539-8 3 35 19-98 || 37 | 576-2|) 38 | 495-0 10 
45 19-84 || 47 | 577-4 || 48 | 532-7 15 
16 7 0 | 24 49-48 2 | 533-8 3 50 18-18 || 52 | 578-5 |) 53 | 551-4 20 
10 40-96 || 12 | 548-0) 13 55 15-98 || 57 | 576-7 || 58 | 579-7 30 
20 45-78 || 22 | 558-1 ]} 23 6 0 15-24 2 | 561-8 3 | 575-5 40 
30 53-81 || 32 | 561-4]| 33 5 02-94|| 7 | 559-5 8 | 564-4 50 
45 55-76 || 47 | 559-9 || 48 10 04-39 || 12 | 565-0|| 13 | 584-9 55 
16 8 0 | 24 53-88 2 | 561-0 3 15 00-87 || 17 | 587-8 || 18 | 615-4] 14 5 0 
16 9 0 | 25 04-91 2 | 553-4 3 20 05-47 || 22 | 635-3 |) 23 | 670-4 10 
16 10 0 | 24 57-62 2 | 535-0 3 24 | 626-6 15 
(ee ee — 25 | 25 06-12)| 26 | 628-1|| 27 | 645-3 20 
20 10 0 | 25 00-84 2 | 552-6 3 28 | 602-6 || 29 | 627-2 26 
10 01-14} 12 | 551-5 |} 13 30 | 24 53-85 || 32 | 570-8|| 33 | 569-4 28 
20 02-25 || 22 | 550-9 | 23 34 | 555-0 30 
2) | ee ee | 35 | 25 05-58 || 36 | 545-2 32 
25 8 0 | 25 11-77 2 | 545-9] 3 37 | 544-6 |] 38 | 527-4 35 
25 9 || 50 20-52 |) 52 | 528-0) 53 40 10-83 || 42 | 544-0 |) 43 | 514-1 40 
55 18-61 || 57 | 522-8 |) 58 45 10-98 || 47 | 535-5 || 48 | 503-9 45 
25 10 0 15-76 2 | 522-6 3 50 08-14)| 52 | 539-4|| 53 | 491-6 50 
5 09-13 7 | 529.4 8 55 08-93 || 57 | 540-4 || 58 | 479-9] 14 6 0 
BirivaR. k=0:000135. Bauance, k=0-000010. 
Jan. 72 6%, Clock 105 fast, set right. 
Jan. 2427» 10™. Clock 158 slow, set right. 
Feb. 27419», Clock 36* slow, set right; rate 1*-5; diminished. 
Mar. 134 8s—104, he declination magnet was looked at occasionally ; there appeared to be little motion. 
