966 Meteors on \2th and \Zth November, 1841. [No. 120. 



Day-light interrupted further observation, though faint lines were 

 occasionally observed as of the passage of meteors, for sometime after 

 the day had well dawned. The night was remarkably clear, free from 

 clouds, and calm, and stars were particularly bright : — one meteor only 

 was observed on the evening of the 13th November, and none had been 

 seen for many nights before the 12th. 



During the time of the luminous appearance observed in the N.E. 

 mentioned above, the underwritten readings of the Declination Magne- 

 tometer, were taken. The scale readings of the instrument had been 

 gradually increasing for nearly an hour previous to the phenomenon 

 noted, and at the moment of its occurrence, a gradual decrease began 

 to take place, and continued until the disappearance of the patches. 



At 2: 45 A. M. Scale reading of Declination Magnetometer, 156. 



155.9 

 155.8 

 155.4 

 154.7 

 154.2 



The two latter readings being lower than any observed at these 

 times of the day, during the month. The change of reading indicates 

 a movement of the north end of the declination needle. West, 

 through an arc, not taking the torsion of the suspension thread into 

 account, of 1' : 13" — the arc value of the scale being .676' for each 

 division. The horizontal and vertical Force Instruments remained 

 steady during the above period. 



3:00 



Ditto, 



ditto. 



3: 15 



Ditto, 



ditto. 



3:30 



Ditto, 



ditto. 



3:45 



Ditto, 



ditto, 



4:00 



Ditto, 



ditto, 



