44 CoL Beaufoy's Astronomical Observations, [JulYj 



Article VI. 



Astronomical Observations, 1825. 

 By Col. Beaufoy, FRS. 



Bushey Heathy near Stanmore, 



Latitude 6P 37' 44*3" North. Longitude West in time 1' 20«93". 



May 31. Lunar ecHpse \^^[ \l^ f?' 53 7 Mn.T. at Bushey. Shadow iU defined. 



Observed Transits of the Moon and Moon-culminating Stars over the Middle Wire of 

 the Transit Instrument in Siderial Time. 



1825. Stars. Transit. 



May 28.— t Virginis 13h 17' 32-37" 



28.— Moon's First or West Limb .... 1 3 26 37-69 



28.— 89 Virginis 13 40 26-31 



29.— 317 Virginis 14 01 21-77 



29.— 22 Virginis 14 05 50-19 



29.— 38 Solitaru 14 09 02-69 



29.— 116 Virginis 14 25 04-69 



29. —Moon's First or West Limb. ... 14 26 36-41 



29.— 2l2Libr» 14 47 19-70 



30.— 19 Scorpii 15 06 20-03 



30.— 91 Libra 15 21 44-30 



30.— Moon's First or West Limb 15 28 51-60 



30.— SScorpu 15 50 04-14 



30.— to'' Scorpii 15 56 39-14 



31.— SScorpii 15 50 04-40 



3 l.__K,» Scorpii 15 56 39-42 



31.— oScorpii 16 10 11-8S 



31.— ^ Scorpii 16 15 10-96 



31 i Scorpii 16 18 40-18 



31.— trOphiu 16 21 51-02 



3 1 .—Moon's First or West liimb 16 32 1 8-56 



31.- 24 Ophiu 16 46 20-53 



31.-39 Ophiu 17 07 25-46 



31.— eOphiu 17 11 21-03 



31.— ftOphiu 17 15 4608 



3|._e« Ophiu 17 20 49-35 



Article VII. 



JExplanaiion of the Theory of the Barometrical Measurements of 



Heights. 



{Continued from vol. ix. p. 438.) 



Of the Density of Aqueous Vapour in a Vacuum, 

 Having filled the lower division (or reservoir) W, of the 

 cylindrical vessel C with perfectly jp/zre water, close tlie aperture 

 JT, by screwing inwards the stopper S. The upper division V 



