NEW POSITIONS OF STARS IN ORION 



91 



The values of former observations reduced to 1910.0 are given in 

 Part V. Below each set is given the mean of the results obtained by using 

 the following weights : 



H. Herschel 1 



W. B. W. C. Bond 2 



LI. Lassell 2 



G. B. G. P. Bond 4 



L. S. Liapunoff-Stnive 4 



N. Newcomb 4 



A. G. C. Astronomische Gesellschoft 4 



HI. Hall 4 



B. Burnham 4 



M. Meyermann 4 



Below the mean is given my position for each star for the sake of 

 comparison. The comparisons with the weighted means and with the 

 Bond positions are given in the last table. An examination of these results 

 seems to show no evidence of any proper motion in the great majority of 

 the stars. Almost without exception the largest residuals occur in the 

 case of those stars, Bond's positions of which were determined by eye 

 estimates and diagrams, and which are therefore liable to the largest 



