which are understood, and in fact seem, to be celestial deities; between the sphere of the moon and the highest region of tempests, dwell those aerial spirits, which are conceived by the mind though not seen by the eye—departed heroes, Lares, and Genii. This work, which is said to have chiefly contributed to the splendid reputation of Varro, was extant as late as the beginning of the fourteenth century. Petrarch, to whom the world has been under such infinite obligations for his ardent zeal in discovering the learned works of the Romans, had seen it in his youth. It continued ever after to be the object of his diligent search, and his bad success was a source to him of constant mortification. Of this we are informed in one of the letters, which that enthusiastic admirer of the ancients addressed to them as if they been alive, and his contemporaries. “Nullæ tamen exstant,” says he to Varro, “vel admodum laceræ, tuorum operum reliquiæ; licet divinarum et humanarum rerum libros, ex quibus sonantius nomen habes, puerum me vidisse meminerim, et recordatione torqueor, summis, ut aiunt, labiis gustatæ dulcedinis. Hos alicubi forsitan latitare suspicor, eaque, multos jam per annos, me fatigat cura, quoniam longâ quidem ac sollicitâ spe nihil est laboriosius in vitâ.” Plutarch, in his life of Romulus, speaks of Varro as a man of all the Romans most versed in history. The _historical_ and political works are the _Annales Libri_—_Belli Punici Secundi Liber_—_De Initiis Urbis Romanæ_—_De Gente Populi Romani_—_Libri de Familiis Trojanis_, which last treated of the families that followed Æneas into Italy. With this class we may rank the _Hebdomadum, sive de Imaginibus Libri_, containing the panegyrics of 700 illustrious men. There was a picture of each, with a legend or verse under it, like those in the children’s histories of the Kings of England. That annexed to the portrait of Demetrius Phalereus, who had upwards of 300 brazen statues erected to him by the Athenians, is still preserved:— “Hic Demetrius æneis tot aptus est Quot luces habet annus absolutus.”