Dr. Darwin has collected many of these signs in the following verses.

The hollow winds begin to blow;

The clouds look black, the glass is low;

The soot falls down, the spaniels sleep;

And spiders from their cobwebs peep.

Last night the sun went pale to bed;

The moon in halos hid her head.

The boding shepherd heaves a sigh,

For, see, a rainbow spans the sky.

The walls are damp, the ditches smell,