Chickweed expands its leaves boldly and fully when fine weather is to follow.
In winter frost is generally prevalent in the central area of an anticyclone, accompanied frequently by fog, which is most dense in the neighborhood of large towns. This is all due to the radiation of calm weather.
White mist in winter indicates frost.
In the evenings of autumn and spring vapor arising from a river is regarded as a sure indication of coming frost.
This comes from the air being colder than the water.
When fires burn faster than usual, and with a blue flame, frosty weather may be expected.
This is caused by reduced temperature of the outer air making a better draught in the chimney.
In winter when the sound of the breakers on shore is unusually distinct, frost is indicated.
These last two prognostics are explained by the fact that the atmosphere is very dense and still in an anticyclone.
In those places where fog does not form the sky will often be clear at night, whence—