xlii 



Inteoductiox. 



Table 20. — Observations to determine the Temperature Correction for the Balance Magnet. 



Gottingcn 

 Mean Time. 



Tempe- 

 rature of 

 Balance 



Magnet. 



£-V 



Reading 



of 

 Unifilar. 



Reading 

 of Declino- 

 meter 

 reduced 

 = rd. 



Adopted 

 reading 

 of Declino- 

 meter. 



minus 

 r{d-d^). 



Bifilar. 



-I- 



Reading 

 corrected. 



Thermo- 

 meter. 



d. h. m. 



Aug. 23 20 31 



21 54 



22 44 



23 11 

 23 38 



Aug. 24 17 



46 



1 28 



2 1 

 2 29 



2 42 



3 

 3 29 



3 57 



4 28 



4 56 



5 10 



Magnet 

 59-45 

 46-70 

 66-00 

 9000 

 7000 



Magnet 

 66-95 

 38-50 

 63-45 



Magnet 

 66-15 

 87-00 

 62-90 

 37-30 

 69-15 



Magnet 



Away. 



12-75 

 19-30 

 2400 

 2000 



Away. 



28-45 

 24-95 



Away. 



20-85 

 24-10 

 25-60 

 31-85 



Away. 



Sc. Div. 



270-35 

 476-03 

 469-02 

 467-06 

 465-47 

 462-53 

 250-98 

 459-13 

 463-32 

 464-33 

 255-99 

 464-19 

 46408 

 466-53 

 474-77 

 470-58 

 262-89 



Sc. Div. 



161-48 

 159-51 

 153-61 

 152-44 

 151-41 

 148-49 

 145-63 

 145-54 

 14900 

 15000 

 149-76 

 149-91 

 150-01 

 151-51 

 158-42 

 154-66 

 154-47 



Sc. Div. 



158-36 

 151-77 

 150-20 

 148-83 

 145-37 



145-86 

 149-57 

 150-78 



150-18 

 15071 

 152-62 

 159-99 

 156-64 



Sc. Div. 



-hO-42 

 -0-39 

 -0-22 

 -0-52 



-0-48 

 -0-20 



-0-64 

 -0-54 

 -0-87 

 -0-84 



Sc. Div. 



125-30 

 1 36.34 

 134-62 

 135-56 

 142-98 



136-57 

 143-82 

 143-58 



145-28 

 155-87 

 146-51 

 147-32 

 147-37 



53-3 

 54-0 

 .54-8 

 55-7 

 57-1 



60-1 

 61-2 

 62-3 



63-8 

 64-4 

 65-1 

 65-8 

 66-5 



+ 0-0000524 

 -0-0000956 

 -0-0000311 

 -0-0001780 



-0-0001130 

 -00000259 



-00000S72 

 -00000694 

 -0-0001743 

 -0-0001225 



Aug. 31 22 25 



23 10 



23 34 



Sept. 1 



21 



38 



59 



1 20 



1 43 



2 3 

 2 24 



2 46 



3 10 

 3 35 



3 58 



4 18 



4 41 



5 6 

 5 29 



5 49 



6 10 

 6 46 



Magnet 

 60-95 

 42-10 



]Magnet 

 64-15 

 85-20 

 66-25 

 43-20 

 64-85 

 90-55 

 65-40 

 80-70 

 60-00 

 40-85 

 64-70 

 86-80 

 66-20 

 41-35 

 65-55 

 85-30 

 6200 



Magnet 



Away. 



18-85 



Away. 



21-05 

 18-95 

 23-05 

 21-65 

 25-70 

 25-15 

 15-30 

 20-70 

 19-15 

 23-85 

 21-90 

 20-40 

 24-85 

 24-20 

 19-95 

 23-50 



Away. 



Away. 



23-70 

 22-65 

 27-55 

 24-20 

 23-85 

 21-20 

 24-65 

 23-40 

 18-15 

 19-70 

 23-10 

 24-65 



260-23 

 461-80 

 458-34 

 250-82 

 453-52 

 453-42 

 453-45 

 453-06 

 451-08 

 450-34 

 452-06 

 449-00 

 447-49 

 455-50 

 455-93 

 456-90 

 453-95 

 453-60 

 460-84 

 467-10 

 472-23 

 260-07 



153-71 

 150-92 

 147-39 

 144-87 

 142-97 

 143-23 

 143-15 

 142-48 

 141-09 

 140-91 

 141-93 

 139-83 

 137-96 

 144-60 

 146-25 

 147-57 

 144-19 

 144-19 

 150-48 

 156-58 

 160-84 

 153-59 



150-62 

 146-91 



-0-19 



-0-36 

 -0-11 

 -0-28 

 -0-59 

 -0-56 

 -0-70 

 -0-96 

 -0-36 

 -1-37 

 -1-22 

 -0-35 

 -0-43 

 + 0-35 

 + 0-95 

 + 0-16 

 -0-87 



123-47 

 124-88 



120-09 

 122-90 

 128-72 

 134-44 

 142-78 

 140-30 

 128-80 

 147-70 

 141-49 

 122-78 

 154-87 

 149-65 

 141-19 

 162-14 

 141-45 

 139-71 

 130-62 



62-9 

 63-1 



63-9 

 64-0 

 64-4 

 04-9 

 65-0 

 65-2 

 65-4 

 65-6 

 65-7 

 65-9 

 66-0 

 66-2 

 66-5 

 66-7 

 66-9 

 67-0 

 67-0 



-00000582 



-0-0000669 

 -00000650 

 -00000895 

 -0-0000871 

 -00001184 

 -00000813 

 -00001586 

 -00000491 

 -0-0002329 

 -00000885 

 -00001071 

 -0-0000533 

 -00000326 

 + 00000893 

 + 00000288 

 -00001348 



Sept. 1 23 8 

 23 48 



Sept. 2 6 

 22 

 39 



57 



1 18 

 1 37 



1 57 



2 13 

 2 30 



2 50 



3 10 



Magnet 

 65-90 

 89-60 

 66-95 

 39-40 

 63-60 

 87-45 

 66-25 

 41-60 

 65-00 

 83-15 

 63-45 

 40-35 



251-32 



466-17 

 467-63 

 466-76 

 465-97 

 463-93 

 463-45 

 462-73 

 465-04 

 463-26 

 462-30 

 462-77 

 465-88 



145-99 

 147-68 

 149-35 

 148-12 

 147-09 

 145-27 

 145-41 

 144-53 

 145-85 

 144-94 

 144-20 

 144-44 

 146-78 





-0-21 

 -0-36 

 -0-24 

 -0-22 

 -0-62 

 -0-16 

 -0-99 

 -0-87 

 -0-22 

 -0-23 

 -0-77 

 -0-28 



106 

 111 

 HI 

 118 

 115 

 120 

 127 

 114 

 128 

 125 

 130 

 122 



84 

 89 

 42 

 74 

 37 

 71 

 09 

 50 

 50 

 73 

 04 

 56 



66-3 

 06-7 

 67-1 

 67-4 

 67-7 

 680 

 68-3 

 68-6 

 68-7 

 68-9 

 69-0 

 690 



-0 0000162 

 -0-0000726 

 -0-0000732 

 -00000598 

 -0-0000958 

 -0-0000720 

 -0-0001282 

 -0-0001035 

 -0-0000757 

 -0-0000816 

 -0-0001185 

 -0-0000733 



