396 



CoL Beaufoy's Astronomical , Magnetical, [May, 



Article XVIII. 



Astronomical, Magnetical, and Meteorological Observations, 

 By Col. Beaufoy, F.R.S. 



Busheij Heathy near Stanmore. 



Latitude 51° 3T 44-3" North. Longitude M^est in time 1' 20-93". 



Astronomical Observations. 



March 2. Emersion of Jupiter's first < 7'' 12' 27" Mean Time at Bushey. 



satellite ( 7 13 48 Mean Time at Greenwich. 



Magnetical Observations, 1822. — Variation West, 



»' By comparing the mean of these observations with those of March, 1819, the period 

 of the greatest western variation, the morning decrease is 5' 40", the noon 5' 06", and 

 tile evening 6' 32" ; mean of the three bf 46", which is an annual diminution of 1' 55"« 



