Because the mountains attract the clouds; and because the clouds that are flying low are borne against the sides of the mountains and directed upwards, where they meet with cold currents of air.
435. Why does more rain fall by night than by day?
Because by night the temperature of the air, heated during the day, falls to that degree which condenses its vapours into rain.
"As the hart panteth after the water brooks, so panteth my soul after thee O God."—Psalm xlii.
436. Why do bunches of dried sea-weed indicate the probability of coming rain?
Because they readily imbibe moisture, and when they become soft and damp they show that the air is approaching the point of saturation.
437. Why does the weather-toy, called the "weather-cock," foretell the probability of rain?