The dragon, whose "ever-open eye" protected the
garden of the Hesperides, was the Son of Earth. The earth or
cave-dragon. . . . Calabria has some of these dragons' caves; you can
read about them in the Campania. Sotteranea of G. Sanchez.
In volcanic regions there are fissures in the rocks exhaling pestiferous
emanations; these are the spiracula, the breathing-holes, of the
dragon within. The dragon legends of Naples and Mondragone are probably
of this origin, and so is that of the Roman Campagna (1660) where the
dragon-killer died from the effects of this poisonous breath: Sometimes
the confined monster issues in a destructive lava-torrent - Bellerophon
and the Chimsera. The fire-dragon. ... Or floods of water suddenly
stream down from the hills and fountains are released. It is the hungry
dragon, rushing from his den in search of prey; the river-dragon. . . .
He rages among the mountains with such swiftness and impetuosity.
This is chiefly the poets' work, though the theologians have added one
or two embellishing touches. But in whatever shape he appears, whether
his eyes have borrowed a more baleful fire from heathen basilisks, or
traits of moral evil are instilled into his pernicious physique by
amalgamation with the apocalyptic Beast, he remains the vindictive enemy
of man and his ordered ways.