ox COMPARING AND REDUCING MAGNETIC OBSERVATIONS. 

 varioushj determined, compared, 1889-1896. 



107 



tal Force 



All 

 Days 



163 

 200 

 313 

 447 

 449 

 496 

 496 

 470 

 393 

 338 

 212 

 150 



225 

 464 

 453 

 233 



344 



248 

 263 

 323 

 402 

 413 

 411 

 370 

 331 



b-c 



Great 

 est 



Month- 

 ly 



"S alue 



-I- 73 



-I- 95 



-I- 59 



+ 33 



-f 64 



-f 68 



- 4 



+ 64 



4- 64 



+ 38 

 -1-101 



+ 16 



+ 66 



-f 41 



+ 73 



-I- 64 



+ 90 

 -flOl 



•^ 95 



+ 38 



Mean 



-H6 

 -t-32 

 -14 

 -24 

 -14 

 -32 

 -52 

 -13 

 + 4 



- 9 

 + 29 



- 3 



-1-12 

 -23 

 -20 

 -f 6 



- 7 



+ 4 

 -h 3 

 + \a 

 -32 

 + 1 



- 8 

 -10 

 -25 



Vertical Force 



Quiet Days 



As 

 Ob- 

 served 



114 

 125 

 216 

 245 

 312 

 257 

 253 

 212 

 195 

 157 

 115 

 105 



152 

 271 

 220 

 126 



! 192 



I 

 I 



i 163 

 176 

 192 

 228 

 202 

 197 

 191 

 190 



Cor- 

 rected 

 for 

 Non- 

 cyclic 

 Incre- 

 ment 

 b 



100 

 131 

 221 

 243 

 309 

 253 

 252 

 210 

 194 

 157 

 114 

 96 



151 

 268 

 219 

 122 



190 



163 



170 

 189 

 231 

 199 

 192 

 187 

 190 



a—b 



4-14 



- 6 



- 5 

 + 2 

 + 3 

 -I- 4 

 -I- 1 

 + 2 

 + 1 







+ 1 



+ 9 



-1- 1 



+ 3 



-1- 1 



+ 4 





 + 6 

 + 3 

 - 3 

 + 3 

 -I- 5 

 + 4 







All 

 Days 



109 

 175 

 257 

 298 

 356 

 303 

 277 

 233 

 217 

 196 

 157 

 105 



180 

 319 

 242 

 153 



224 



168 

 173 

 222 

 257 

 £33 

 248 

 242 

 245 



b-c 



Great- 

 est 

 Month- 

 ly 



Value 



H-22 

 -f 22 

 + 13 

 -13 

 +17 

 + 26 

 + 44 

 + 26 

 + 26 

 + 17 

 + 4 

 + 35 



+ 35 

 + 44 

 + 22 

 + 31 

 + 17 

 + 17 

 + 26 

 - 9 



Mean 



- 9 



-44 

 -36 

 -55 

 -47 

 -50 

 -25 

 -23 

 -23 

 -39 

 -43 



- 9 



-29 

 -51 

 -23 

 -31 



-34 



- 5 



- 3 



-33 

 -26 

 -34 

 -56 

 -55 

 —55 



