and positions 0/36 double and triple stars , &c, 351 



No. XXI. R. A. 16^ 8» ; Decl. 34° 20' N. 



<r Coronse ; L 3 ; H. and S. 222. 



continued. 



The mean angular velocity corresponding to the whole 



interval is + 2^.964 — say 3°. The great and almost sudden 



increase of angular velocity from 2° to nearly 7° per annum, 



is not verified ; and the angle 40'' o' nf for 1819, on which 



it rests, must of necessity have been considerably in error. 



Now this is the very angle which, according to the table 



(p. 252, Phil. Trans. 1824. III.) gives a deviation of 9*2' 



from the computed place, so that the hypothesis there assumed 



respecting the orbit is considerably supported by the present 



observations. (H.) 



No. XXII. R. A: 16^ SB'^ ; Decl. 31° 56^ N. 



5" Herculis ; I. 36 ; H. and S. 237. 



Passy ; July 28, 1825 ; Seven-feet Equatorial. 



The evening being very favourable, I examined this star 

 very attentively with the magnifying powers iSi, 327, 413, 

 512, and 787; not the shghtest appearance either of a 

 second star, or of any elongation of f : with 787 it was ex- 

 quisitely defined, and as round as possible. 



No. XXIII. R. A. 17^^ 3" ; Decl. 54° 43' N. 



ji6 Draconis ; II. 13 ; H. and S. 242. 



Double ; equal ; each of the 8th magnitude, 



Passy ; April 3, 1825 ; Seven-feet Equatorial. 

 Distance = 4''.47o | 5 Obs. | Diff.= d'.^zg. Unsteady. 



Observed with 413, when i\ hour east of the meridian; half the object-glass 

 rendered useless by the intervention of the timbers of the observatory. 



