Q. Why do our heads and skin itch before rain?
A. Probably because the air is overcharged with electricity; and, therefore, a sensation (like that of cobwebs) irritates the skin, and produces an itching.
Q. Why do we hear distant CLOCKS more distinctly when rain is near at hand?
A. Because the air is filled with vapour, and water is a better conductor of sound than dry air.
Q. Why do we hear church-bells further, just previous to rain?
A. Because the air is filled with vapour, and vapour is a better conductor of sound than dry air.
Q. Why do doors swell, when rain is at hand?
A. Because the air is filled with vapour, which (penetrating into the pores of the wood) forces the parts further apart, and swells the door.
Q. Why do doors shrink in dry weather?