1814.] Astronomical and Magnetlcal Observations. S73 



readily any alteration or change in the magnetical fluid ; and very 

 possibly a still lighter needle might have greater advantages, as 

 needles one, two, and three, which were heavier, did not answer so 

 well. I remain, my dear Sir, yours faithfully, 



Mark Beaufoy. 



Latitude, 51° 32' 40-3" North, Longitude West in 



Marcli23, Emersion of Jupiter's < 8h 23' 58' 



4th Satellite ^8 24 04 



April 5, Immersion of Jupiter's K 1 23 55 



3d Satellite } 1 24 01-8 



April 7, Emersion of Jupiter's < 8 36 15 



2d Satellite ^8 36 21 



April 12, Immersion of Jupiter's < 11 23 48 



3d Satellite Jll 23 54 



April 14, Emersion of Jupiter's j 11 14 13 



2d Satellite (W 14 19-8 



April 14, Emersion of Jupiter's (11 57 03 



Istsatellite ?11 57 09-8 



Tim. J R" ^ * 



Mean Time at H.W. 

 Ditto at Greenwich, 

 Mean Time at H.W. 

 Ditto at Greenwich. 

 Mean Time at H,W. 

 Ditto at Greenwich. 

 Mean Time at H.W. 

 Ditto at Greenwich. 

 Mean Time at H.W. 

 Ditto at Greenwich. 

 Mean Time at H.W. 

 Ditto at Greenwich. 



Magnetical Observations, 



1814. 



