[682] See the Treatise of Theophrastus on the Prognostics of the Weather.

[683] This, Fée observes, is confirmed by experience. Aratus, as translated by Avienus, states to a similar effect.

[684] So Virgil, Georg. i. 427.

[685] Coronam.

[686] See B. ii. c. 6 and c. 36.

[687] In c. 59 of this Book.

[688] “Densum.” Fée says that this is in general confirmed by experience.

[689] This results, Fée says, from the presence of thin, aqueous vapours, which portend a change in the atmosphere.

[690] Fée attributes this phænomenon to hydrosulphuric gas, ignited in the air by an electric spark. The notion that these meteors are stars, was prevalent to a very recent period.

[691] To which they proceed.