Royal Astronomical Society, 229 



found the times occupied to be respectively 57 s, 5 and 25 s, 5, which 

 gives for their difference of declination 6' 24", the comet being south 

 of the star. The star w is a conspicuous one, of fully the 9th mag., 

 and there is no other which can be mistaken for it. A star of the 10th 

 mag. precedes it about 20 s of time, and is about 2'| south of it ; but 

 except this there is no other considerable star within at least 10' in 

 all directions. The comet's daily motion (obtained per Ephemeris) 

 may therefore be safely used to identify this star. Admitting, then, 

 that in the interval (2G h 15 ra S.T.) elapsed since the last observation 

 the comet had moved over + 6 m 20" in JR, and —1° 10' 3" in decl., 

 we get for the approximate place of the star w for 1832*0, 

 M = 10 h 21"' 52 s ; Decl. + 6° 32' 55"." 



Mr. Best presented a diagram of the path of the comet irom Oct. 

 30 to Nov. 14. 



II. On a Method of Ascertaining the Rate of Chronometers j 

 especially when a strict examination of their performances is required. 

 By Mr. James Epps, Assistant Secretary of the Society. 



Ill Observations of the Transit of Mercury of May 5, 1832; bv 

 M. Queteletof Brussels ; Mr. Henderson, at the Cape of Good Hope"; 

 Capt. Bayfield ; Capt. R. Owen, at Crooked Island ; Capt. Belcher, 

 at Cavalho Island, Bijoogas ; and M. Cacciatore. 



IV. Observations of the Occultation of 104 m Tauri of October 13 ; 

 and of fx Cell of November 7, 1832. By Mr. Snow. Accompanied 

 by the transits of the stars which were used to correct the clock. 



1832. October 13. Observed in Saville Row. 



Immersion of 104 m Tauri (5th mag.) 3 h 35 m 44 s -7 sid. time. 



The star vanished gradually, as if it had been a small planetary 

 body. Telescope, 45-inch refractor, power 180 5 adjusted to the 

 star. 



1832. November 7. Observed in Saville Row. 



Immersion of ^ Celi (4th mag.) 23 h 35 m 41**10 sid. time. 



Telescope 45-inch refractor, power 40, adjusted to the star. The 

 star was very sharp and distinct; and although the immersion took 

 place at the moon's dark limb, (the moon wanting about 1 2 hours 

 of being full,) the star did not disappear until it actually reached 

 the enlightened portion of the moon's disk: the star then vanished, 

 not quite instantaneously, but suffered no previous diminution of light 

 or change of colour. 



V. Observations of the Occultation of Saturn of May 8 ; by Pro- 

 fessor Airy and Mr. Maclear, at Cambridge j and by M. Cacciatore, 

 at Palermo : the latter observed that on emerging, Saturn shone 

 faintly for 20 s , and then resumed its usual splendour. 



VI. Stars observed with the Moon at the Royal Observatory, 

 Greenwich, in the months of June, July, and August, 1832. 



VII. Observations of the Transits of the Moon with Moon- 

 culminating Stars, made at Cambridge Observatory in the months 

 of August, September, and October, 1832. 



