[290] All these circumstances are detailed by Suetonius, in Julio, § 88. p. 178.
[291] “terris.”
[292] Seneca remarks, “... quidam nullos esse cometas existimant, sed species illorum per repercussionem vicinorum siderum,... Quidam aiunt esse quidem, sed habere cursus suos et post certa lustra in conspectum mortalium exire.” He concludes by observing, “Veniet tempus, quo ista quæ nunc latent, in lucem dies extrahat, et longioris diei diligentia;” Nat. Quæst. lib. 7. § 19. p. 807.
[293] For some account of Hipparchus, see note [189], p. 37.
[294] Nothing is known respecting the nature of these instruments, nor have we any means of forming even a conjecture upon the subject.
[295] The terms “faces,” “lampades,” “bolides,” and “trabes,” literally torches, lamps, darts, and beams, which are employed to express different kinds of meteors, have no corresponding words in English which would correctly designate them.
[296] From this account it would appear, that the “fax” was what we term a falling star. “Meteora ista, super cervices nostras transeuntia, diversaque a stellis labentibus, modo aërolithis ascribenda sunt, modo vaporibus incensis aut electrica vi prognata videntur, et quamvis frequentissime recurrant, explicatione adhuc incerta indigent.” Alexandre in Lemaire, i. 302.
[297] Seneca refers to this meteor; “Vidimus non semel flammam ingenti pilæ specie, quæ tamen in ipso cursu suo dissipata est ... nec Germanici mors sine tali demonstratione fuit;” Nat. Quæst, lib. i. cap. 1. p. 683.
[298] This meteor is mentioned by Dion Cassius, lib. xlv. p. 278, but is described by him as a lampas.
[299] We may presume that the trabes are, for the most part, to be referred to the aurora borealis. The chasma and the appearances described in the twenty-seventh chapter are probably varieties of this meteor. On these phænomena we have the following remarks by Seneca: “Lucem in aëre, seu quamdam albedinem, angustam quidem, sed oblongam, de noctu quandoque visam, sereno cœlo, si parallelo situ sit, Trabem vocant; si perpendiculari, Columnam; si, cum cuspide Bolida, sive Jaculum.” Nat. Quæst. vii. 4, and again, vii. 5, “Trabes autem non transcurrunt nec prætervolant, ut faces, sed commorantur, et in eadem parte cœli collucent.”