1. In winter, a red sky at sunrise indicates the speedy approach of rain.

2. In summer, the same appearance denotes refreshing showers.

3. Squalls of wind generally follow these appearances: - "It will be foul weather to-day, for the sky is red and lowering." Matt. xvi. 3.

4. Small patches of white clouds, like flocks of sheep at rest, indicate continued fine weather.

5. Large mountainous (or Jupiterian) clouds, called cumulo stratus, produce sudden showers in spring and autumn, and hail-storms in summer and winter.

6. When large clouds diminish in size, fine weather will follow; if they increase, rain or snow.

7. Rainbows denote frequent showers. Spiders generally alter their webs once in twenty-four hours; and a rule has been deduced from this, whereby to foretell the coming change. If they thus alter their web between six and seven in the evening, there will be a fine night; if in the morning, a fine day; if they work during rain, expect fine weather; and the more active and busy the spider is, the finer will be the weather. If spiders' webs (gossamer) fly in the autumn, with a south wind, expect an east wind and fine weather. If garden spiders break off and destroy their webs, and creep away, expect continued rain and showery weather.

The Leech also possesses the peculiar property of indicating approaching changes of the weather in a most eminent degree. In fair and frosty weather it remains motionless and rolled up in a spiral form at the bottom of the vessel; previously to rain or snow, it will creep to the top, where, should the rain be heavy, or of long continuance, it will remain for a considerable time; if trifling, it will descend. Should the rain or snow be accompanied with wind, it will dart about with great velocity, and seldom cease its evolutions until it blows hard. If a storm of thunder or lightning be approaching, it will be exceedingly agitated, and express its feelings in violent convulsive starts at the top of the glass. These animal movements are all induced, probably, by sensations in the animal occasioned by changes in the atmospheric electricity.

Rain may be Expected - When the sounds of distant waterfalls, etc., are distinctly heard - When the sun rises pale and sparkling - When the sun rises amidst ruddy clouds - When the sun sets behind a dark cloud - When there is no dew after heat in summer - When there is much hoar frost in winter -When mists rest on the mountain tops - When snails and frogs beset your evening walk - When gnats bite vigorously - When animals are unusually restless.

Fair Weather may be Expected - When none of the signs of rain just given occur - When the sun sets red and cloudless - When the moon's horns are sharp - When the stars shine brightly - When smoke rises easily - When moths and beetles appear in numbers.

Clouds

"When it is evening, ye say, It will be fair weather, for the sky is "red." {Matt. xvi. 2.) "And this observation of nineteen centuries past is explained by the optical fact, that dry air refracts more of the red rays of light, than when it is moist; and as dry air is not perfectly transparent, those rays are reflected in the horizon." - Davy's Salmonia.

Rainbow

"When this is seen in the morning, it betokens rain; but if in the evening, fair weather; and Sir H. Davy thus explains this phenomenon: - ' The bow can be seen only when the clouds depositing the rain arc opposite to the sun, - thus in the morning the bow is in the west, and in the evening it is in the east; and, as the rains in this country are usually brought by westerly winds, a bow in that quarter indicates that the rain is coming towards the spectator; whereas a bow in the east indicates that rain is passing away.' " - Salmonia.

Wind

Mr. Christensen says, that the wind changing to any point of the compass between e.s.e. and n.n.w. causes the mercury to rise; and a change to any point between w. and s. causes it to be depressed.