The Meteorology of Shakspeare.—A treatise might be written on meteorology, and might be illustrated entirely by passages taken from the writings of "the world's greatest poet." "N. & Q." may not be the fitting medium for a lengthened treatise, but it is the most proper depository of a few loose Notes on the subject.

Those who study Shakspeare should, to understand him, thoroughly study Nature at the same time: but to our meteorology. Recent observers have classified clouds as under:

Howard's Latin
Nomenclature.

Foster's English
Names.

Local Names.

Cumulus.

Stackencloud.

Woolbag.

Cirrus.

Curlcloud.

Goatshair, Grey Marestails.

Stratus.

Fallcloud.

Nimbus.

Raincloud.

There are composite forms of cloud, varieties of the above, which need not be noticed here. The Cumulus is the parent cloud, and produces every other form of cloud known, or which can exist. Mountain ranges and currents of air of unequal temperatures may produce visible vapour, but not true cloud.

Cumulus. This cloud is always formed at "the dew point." The vapour of the lower atmosphere, at this elevation, is condensed, or rendered visible. In fog the dew point is at the surface of the earth; in summer it may be several thousands of feet above. The Cumulus cloud forms from below. The invisible vapour of the lower atmosphere is condensed, parts with its thousand degrees of latent heat, which rush upwards, forcing the vapour into the vast hemispherical heaps of snowy, glittering clouds, which, seen in midday, appear huge mountains of clouds; the "cloud-land" of the poet, floating in liquid air. The Cumulus cloud is ever changing in form. Cumulating from a level base, the top is mounting higher and higher, until the excessive moisture is precipitated in heavy rain, hail, or thunder showers.

The tops of the Cumulus, carried away by the upper equatorial currents, form the Cirrus clouds, which clouds must be frozen vapour, as they are generally from twenty to thirty thousand feet above the level of the sea. The base of the Cumulus is probably never more, in England, than five thousand feet high, rarely this. The Nimbus is the Cumulus shedding its vapour in rain; and the Stratus is the partially exhausted and fading Nimbus.

Poets in all ages have watched the clouds with interest; and Shakspeare has not only correctly described them, but has, in metaphor, used them in some of his sublimest passages. Ariel will "ride on the curled clouds" to Prospero's "strong bidding task" that is, ride on the highest Cirrus cloud, in regions impassable to man. How admirably the raining Cumulus (Nimbus cloud) is described in the same play:

"Trinculo. Here's neither bush[[4]] nor shrub, to bear off any weather at all, and another storm brewing. I hear it sing i' the wind: yond' same black cloud, yond' huge one, looks like a foul[[5]] bumbard that would shed his liquor ...

... Yond' same cloud cannot choose but fall by pailfuls."

Hamlet points to a changing Cumulus cloud, when he says to Polonius, "Do you see that cloud, that almost in shape like a camel?"

"Pol. By the mass, and 'tis like a camel, indeed.