A careful revision of the former communication on Double 

 Stars, Phil. Trans. 1824. iii. has led to the detection (among 

 several errata of trifling importance), to the following of a graver 

 character, which the reader of that paper is earnestly requested 

 to correct in his Copy. 



Page, &c. 



Error. 



Correction. 



124. 

 216. 



325- 



337. 



.Mean 54Cancri. . 

 48.845- • 



4-13 



.Near 54 Cancri. 



40.845. 



44.6.., 



337 twice and in Index, Star No. 301 

 338 



355 



167 and in Index No. 144. 



101 and in Index No. 79 



323 twice and in Index No. 287... 



Index No. 105 , . . . . 



Index No. 110 in Column of Decl. 



Index No. 278 



Index No. 222 , 



{ 



97.60 



.23.467.. 



Z= + 1.44... 

 Z = — 0.12. . . 



.-.73° 50' 



••••73 54 



••••73 52 



....i6".988 



....67° 46' 



9 42 



... .12 17 



...278 



Mean mot. — 2°. 13 



107.60. .. 



25.871.. 



.Z = — 1.44... 

 .Z = + 0.12... 



••••72° 50' 



••••72 54 



••.•72 52 



....i5''.966 



22° 14' 



9 iz 



... .17 12 



..•278 



Mean mot. + 2°. 13 



^n^ata to be corrected in the present Memoir^ 



Page 209, /or " between 36 and 38," read north following 36. 



353>/o^" 1825.252," rejrf 1825.52. 



vi. (Index) H. and S. 74 ; for -f o°.oo9," read + 0°. 109. 



viii. (Index) S. 600 ; Re-exam, add in col, of Remarks, the word '« Binary. 



From the Press of 



JV. NidOL, 



Cleveland-row, St, Jameses. 



