454 Astronomical and Magnetical Oi'servations, [Junb, 



Acidum molybdosum Molybdous acid. 



niolybdicum Molybdic acid. 



arsenicosum Arsenious acid. 



arsenicum Arsenic acid. 



carbonicum Carbonic acid. 



boracicum Bbracic acid. 



fluoricum Fluoric acid. 



phosphorosum Phosphorous acid. 



phosphoricum Phosphoric acid. 



muriaticum Muriatic acid. 



oxymuriaticura Hyperoxymuriatic acid, 



nitrosum I^itrous acid. 



nitricum Nitric acid. 



sulphurosum Sulphurous acid. 



sulphuricum Sulphuric acid. 



e. Superoxida. Superoxides. 



By superoxides are meant bases combined with so great a quantity 

 of oxygen that they cease to be capa])le of uniting with acids. 



Superoxidum kalicum Peroxide of potassium. 



natricum sodium. 



manganicum . . . . manganese, 



cobalticum cobalt. 



niccolicura nickel. 



plumbosum Red oxide of lead. 



plumbicum Peroxide of lead. 



hydrargyricum . . . mercury. 



muriatosum Oxymuriatic acid. 



muriaticum Euclilorine gas. 



As the remainder of the nomenclature contains nothing that will 

 not be intelligible without an explanation, 1 shall defer the insertion 

 of it for the present. 



Article IX, 



Astronomical and Magn^ical Ohservations at Hackney Wick, 



By Col. Beaufoy. 



Latitude, 51° 32' 40-3" North. Longitude West in Time &'-two' 



April 30, Emersion of Jupiter's 5 lOh 14' 54'2'' Mean Timqat H.W, 

 Ist Satellite MO 15 01 Ditto at Greenwich. 



