Q. May this meteoric appearance be attributed to any other cause, besides those mentioned?
A. Yes; if many horses, sheep, pigs, or oxen, are pastured on a meadow, the animal vapour arising from them (strongly electrified by the air) will ignite, and produce a luminous appearance.
Q. May not many ghost stories have risen from some ignis fatuus lurking about church-yards?
A. Perhaps all the ghost stories (which deserve any credit at all) have arisen from the ignited gas of church-yards lurking about the tombs, to which fear has added its own creations.
CHAPTER XXII.
WIND.
Q. What is wind?
A. Wind is air in motion.
Q. What puts the air in motion, so as to produce wind?
A. The principal causes are the variations of heat and cold, produced by the succession of day and night, and the four seasons.