Elucidation. This has been more especially the case in respect of the theory of the annual and diurnal ?uctuations of the barometer, a point of a very delicate nature, and on which the Views of meteorologists are so far from being in harmony with each other, or with nature, that M. Dove in one of his most recent publications instances the cases of M. Lamont, who attributes these pheno mena to an electric attraction exerted by the sun, of Mr. Broun who seeks their origin in the sun's magnetism, and of M. Henry who looks to the resistance of the ether as their cause. To have extended the Encyclopaedic article into a syste matic, or anything like a complete treatise, would have required more time and labour than I have at my disposal.