Vertical Component of Magnetic Force, 1845. 



23 



TABLE XLI. — Mean Difference of a Single Observation of the Balance Magnetometer from the 

 Monthly Mean at the corresponding hour, for each Civil Day and Week in 1845. 



Civil 

 Day. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 





Mic. DiT. 



Mic. Div. 



Mic. Dir. 



Mic. Div. 



Mic. DiT. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



1 



29-7 



14-4 



152 



12.9 



65-6 



[14-8] 



20.4 



23-7 



147 



I8.3 



146 



8.3 



2 



24-6 



[19-0] 



[12.2] 



8-7 



138 



7-1 



171 



310 



30.2 



5.6 



[I9.4] 



4.8 



3 



18-7 



17-2 



13-8 



15-7 



11.4 



8.9 



110 



[16.6] 



40-2 



16-7 



8.4 



91-9 



4 



13-7 



11-7 



13-4 



13. 1 



[26-8] 



232 



14.3 



132 



30-8 



8-5 



22-8 



41.4 



5 



[16.1] 



37-8 



135 



16-9 



233 



14.1 



14-2 



112 



21-7 



[11-7] 



47-5 



38.8 



6 



13-9 



21-6 



14-5 



[14.1] 



22-7 



4-6 



[11-8] 



7-9 



30-9 



21-3 



24.8 



26- 1 



7 



11-0 



11-7 



14-2 



103 



240 



6.7 



109 



6-3 



[20.7] 



11.8 



112 



[25.1] 



8 



14-5 



10-3 



106 



9.2 



27-0 



[10-2] 



9.6 



122 



20.3 



61 



15.7 



220 



9 



44-5 



[11.2] 



[12.3] 



19-6 



13-6 



16-2 



10.6 



12-9 



9-8 



14-9 



[12.7] 



14.2 



10 



19-4 



55 



8.6 



10.6 



10-8 



123 



12.8 



[13-1] 



107 



29.4 



6.2 



8.4 



11 



13-6 



7.9 



11-8 



13.4 



[16-5] 



7-2 



3.5 



16-9 



12.5 



I6.9 



113 



117 



12 



[18-4] 



10.1 



14.0 



162 



193 



8.9 



19.6 



14.4 



132 



[18.0] 



7.0 



5.7 



13 



12-6 



7.4 



8.4 



[23.1] 



14.9 



132 



[13.9] 



159 



8-5 



8-7 



11-8 



20-1 



14 



11-2 



8-6 



9-4 



85.6 



13.6 



9.3 



16.6 



13.0 



[12-7] 



20-1 



10-9 



[10-3] 



15 



9-4 



9.4 



10-4 



6.7 



I8.4 



[13-0] 



15-2 



20-2 



15-7 



17.9 



9.2 



6-6 



16 



9-6 



[10.0] 



[9-7] 



6-0 



13-3 



13.7 



15.9 



24.4 



15.4 



4-6 



[11. 1] 



10-6 



17 



11-8 



7-4 



11.9 



12-4 



12-3 



152 



4.8 



[16-8] 



10-7 



12.1 



18.2 



7.4 



18 



9-6 



10-2 



8.1 



14-3 



[16.8] 



17-8 



13-5 



20.1 



36.6 



11.9 



10-7 



5-6 



19 



[23-3] 



17-0 



10-2 



156 



330 



15.4 



120 



120 



21.5 



[14-3] 



5-6 



8-4 



20 



89-4 



19-2 



44-0 



[12.4] 



14-4 



15. 1 



[IO.3,] 



11-4 



14-9 



132 



10.9 



7-2 



21 



10-5 



161 



17-9 



127 



9-2 



21.8 



4.8 



14.1 



[19-9] 



196 



6.3 



[10-0] 



22 



9-2 



11-2 



162 



10-3 



8.5 



[12.0] 



12-3 



11. 5 



11-4 



24-3 



10-2 



10.0 



23 



8-4 



[25-1] 



[27.4] 



9-3 



11.4 



4.4 



14-2 



12.6 



17-1 



6-5 



[12.9] 



12.8 



24 



25-7 



34.4 



35-9 



90 



10-0 



8-7 



19-6 



[12-5] 



17.7 



10-4 



14.5 



160 



25 



14-8 



41.0 



33.7 



23-1 



[ 9-9] 



6-6 



58-6 



14.1 



69-3 



14.5 



11.4 



34. 1 



26 



[17-8] 



28-6 



16-6 



120 



9-2 



6.4 



6.3 



13.2 



19-8 



[11.8] 



23-9 



39-6 



27 



10-6 



8.8 



16.0 



[22.7] 



10.0 



5.7 



[17-4] 



9-4 



15-4 



10.4 



40.1 



28-7 



28 



14-8 



8-3 



9.9 



51-2 



10.3 



9.8 



5-2 



13-7 



[26.6] 



15.4 



32.8 



[30-4] 



29 



32-8 





11-3 



21-8 



122 



[13.2] 



9.5 



33. 2 



15-4 



13-6 



340 



193 



30 



13-8 





[12.3] 



192 



12-2 



19.8 



5.3 



46-7 



21. 3 



15-9 



[35-3] 



34-2 



31 



19-4 





14.9 





25-5 





125 



[29-8] 





7-4 





26.7 



TABLE XLII.-^ — Mean Difference of a Single Observation of the Balance Magnetometer from the 

 Monthly Mean at the corresponding hour, with reference to the Moon's Age and Declination, 

 for 1845. 











After 





After 





Moon's 



Mean 



Moon's 



Mean 



Moon 



Mean 



Moon 



Mean 



Age. 



Difference. 



Age. 



Difference. 



farthest 

 North. 



Difference. 



farthest 

 North. 



Difference. 



Day. 



Mic. Div. 



Day. 



Mic. Div. 



Day. 



Mic. Div. 



Day. 



Mic. Div. 



15 



133 







17-6 







125 



14 



17.2 



16 



145 



1 



17-8 



1 



17-5 



15 



11-4 



17 



15-8 



2 



15-3 



2 



142 



16 



145 



18 



15.4 



3 



13-5 



3 



25-7 



17 



29-6 



19 



14-9 



4 



18.8 



4 



15-4 



18 



17-8 



20 



14-6 



5 



17-5 



5 



16.1 



19 



15-2 



21 



20.2 



6 



18-2 



6 



14-3 



20 



18.2 



22 



14.7 



7 



14.0 



7 



16-7 



21 



13-3 



23 



16.0 



8 



19-8 



8 



I8.7 



22 



13.4 



24 



18-3 



9 



145 



9 



193 



23 



I8.5 



25 



20.0 



10 



12.4 



10 



21.2 



24 



11-3 



26 



154 



11 



12-8 



11 



17.5 



25 



13.8 



27 



17-9 



12 



22.2 



12 



14.9 



26 



13-3 



28 



21-0 



13 



15-5 



13 



15.5 



27 



14-3 



29 



210 



14 



152 











