8 DaILty OBSERVATIONS OF MAGNETOMETERS, FEBRUARY 13—Marcu 11. 1842. 
Mar. 11 2 132-33 || 521-1| 48-6 | 868-3} 49-1 
127-80 || 534-6} 52-6 | 857-6} 52-5 
Gottingen BIFILAR. BALANCE, Gottingen BIFILAR. BALANCE, 
Mean Time of || DECLINA- | ——_j7———_||____—~_|_ Mean Time of |} Dectuina- |—————___||-_________ 
Declination TION. Cor- |Thermo-|| Cor- Declination TION: Cor- |{Thermo-|| Cor- |Thermo. 
Observation. rected. | meter. || rected. Observation. rected.| meter. || rected. | meter. 
= Mie. - a@ hy “m: , Se. Diy. ° Mic. Diy) 
0 920-6 Hl Feb. 25 20 0 524-2} 53-6 || 860-7| 55-8 
0 931-5 i 23 0 515-1] 51-4 || 885-7| 53-4 
0 924-8 Hy Feb. 26 2 0 525-6| 54-2 || 879-5] 56-1 
0. 923-8 S 5 0 532-2] 58-3 || 859-5| 59-9 
0 889-4 4 Feb. 27 20 0 518-0} 38-7 | 953-2] 38-8 
0 899-1 A 23 0 513-8| 42-7 || 911-3] 43-1 
0 885-5 i Feb. 28 2 0 527-0| 50-1 || 863-6} 49.4 
0 868-9 HK GROUT Gaseabooe ||| GSSAece I POBAOEE leBrapca | neccca 
0 909-3 iF NY Cr ame OPT 0 ean Of icecaearice. |||) cbotidpan| leeeanGee ll Rucarace || saan 
0 906-7 d PR VETO Peaconbacce ||) ccoJoas | conte linac oes [fP> aise 
0 887-3 . Mans) 12) 62) 10 510-4| 41-2 || 919-6] 41-4 
0 888-3 ‘ 5 0 520-2] 41-2 || 948-8} 41.4 
0 896-2 : 20 0 515-8| 38-8 || 903-3} 39-0 
0 920-8 a 23 0 513-6| 40-4 || 906-6} 40-4 
0 926-1 5 |Mar. 3 2 0 521-1| 45-2 || 890-4] 44-6 
0 1065-4 : 5 0 531-1} 48-1 || 890-9] 48-0 
0 905-1 D 20 0 522-1) 47-1 || 880-8] 47-1 
0 911-5 4 23 0 517-3 | 48-6 || 877-1] 49-2 
0 909-7 “1 | Man 4 2: 0 525-6} 51-6 || 862-2] 52-1 
0 1020-2 . By 40: 531-7| 54-4 || 864-9] 54-7 
0 910-9 , 20 0 516-8} 45-1 || 892-6] 46-2 
0 921-6 ' 23 0 523-2} 47-1 || 890-9] 48-0 
0 947-4 ‘6 |Mar. 5 2 0 525-4! 52-6 || 866-3] 52-4 
0 ay (8) 537-5] 52-8 | 911-5| 52-6 
Mar. 6 20 0 520-1| 42-7 || 896-9] 43-0 
23 0 514-9} 45-8 || 897-5) 46-1 
Mar: Sfan20 10 528-0| 52-0 || 860-5] 51-1 
5 0 530-4] 52-1 || 880-7| 52-2 
20 0 524-1} 49-1 || 875-8] 49-9 
8 tae) |lecbpeosetern |sopaeeta|leeccora: Ihctaase | addcor 
Mar. 8 2 0 528-4] 53-0 || 857-9} 52-9 
5 0 531-8] 53-1 | 889-3} 52-6 
20 0 522-2} 44-5 || 893-0} 45-1 
23 0 514-7] 45-1 | 895-0| 46-1 
Mar. 9 2 0 525-1] 48-1 || 868-5} 48-6 
5 0 527-5| 50-1 || 905-2} 49-6 
20 0 515:3| 42-7 || 893-2| 44.0 
23 0 512-1} 44-5 || 907-7] 45-1 
Mar. 10 2 0 527-7} 48-9 || 872-4] 48-9 
5 0 528-0| 49-9 || 869-4] 49.1 
20 0|| 124-63 | 519-4] 43-7 || 898-0} 44-6 
23 O|| 127-21 || 513-6] 45-6 | 894-4] 45-9 
0 
0 
Briar. %=0-0001248 ¢=0-000304—2'44 Scale divisions. 
Bavance. Jan, 234—March 214 5 k=0:0000140 g=0-000073=5:20 Micrometer divisions. 
Feb. 204. Torsion suspected in Declinometer thread. ‘Torsion tried, estimated at 10°. Circle turned to 270°. This torsion is 
in an opposite direction from what was suspected. Left with brass bar suspended. 
Feb. 214. The bar had come to rest 50° or 60° to the W. of north; it was allowed to hang for a day or two, when it was found 
still in the same position; so that the estimation of Feb. 204 was probably inaccurate. 
Feb, 254 Torsion removed. Circle reading 330° 30’, It seemed to Mr Russell that the shifting of the magnet, for the purpose 
of making the Dip observation, was, in some way, connected with this change of the plane of detorsion. 
———— 
