An alkali, recently discovered by M. Arfredson, a young chemist, employed in the laboratory of M. Berzelius. Sir H. Davy demonstrated by voltaic electricity that the basis of this alkali is a metal, to which the name of lithium has been givem For the mode of obtaining lithia, and an account of its properties, the reader is referred to Ure's Dictionary of Chemistry, as it has not yet been brought into use in the arts.