Group of the Pleiades. 



251 



Division Error Corrections. — Continued. 



Line. 



Corr. 



Line. 



Corr. 



Line. 



Corr. 



Line. 



Corr. 



25' 



+ -OI59 



271 



+ .0079 



291 



— .0023 



3" 



4-. 0009 



252 



+ .OI42 



272 



+ .0079 



292 



— .0028 



312 



-j-. 0009 



253 



+ .0142 



273 



• +-0074 



293 



—.0036 



313 



-[-.0004 



254 



+ .0136 



274 



+ •0057 



294 



— .0028 



3H 



•4.0008 



255 



4-.0142 



275 



+ •0053 



295 



— .0023 



315 



-j-. 0006 



256 



-j- 0146 



276 



+ •0055 



296 



— .0008 



316 



.0000 



257 



+.0130 



277 



+ .0038 



297 



— .0017 



317 



— .0002 



258 



+ . 0130 



278 



+ •0055 



298 



— .OOII 



318 



4-.0002 



259 



+ 0130 



279 



+ 0045 



299 



— .0015 



319 



— .0008 



260 



+ 0127 



280 



4- 0047 



300 



—.0023 



320 



4-. 0004 



261 



+ .0119 



281 



-4- .0042 



301 



—.0013 



321 



4.0017 



262 



+ .0125 



282 



+ .0032 



302 



—.0023 



322 



4-. 0006 



263 



+ .0115 



283 



+.0015 



303 



—.0023 



323 



— .0002 



264 



4-. 0106 



284 



-f.0013 



304 



— .0017 



324 



— .0004 



265 



-J-.0104 



285 



-f.0015 



30S 



— .OOII 



325 



.0000 



266 



4-. 0104 



286 



+ .0017 



30b 



— .0004 



326 



— . 0006 



267 



+.0093 



287 



-j-.OOII 



307 



+.0004 



327 



4-. 0006 



268 



+.0081 



288 



-[-.0004 



308 



4.0004 



328 



4-.0015 



269 



-J-.0076 



289 



.0000 



309 



4- 0009 



329 



4-. 0008 



270 



■4-. 0079 



290 



— .0013 



310 



-[-.0006 



330 



.0000 



When the scale was graduated, line 154 was omitted and after- 

 wards inserted. This accounts for its apparently discordant divi- 

 sion error. 



CORRECTION FOR RUNS 



The following table contains the correction for runs, which has 

 been applied to all the Pleiades observations. The values are 

 derived from an extended series of measures of all the 330 spaces 

 of the scale. The corrections are very minute, and it is probable 

 that the final results would not have been sensibly affected, had this 

 correction been entirely neglected. 



