HOW TO REPRESENT A TEMPEST.

If you wish to represent a tempest consider and arrange well its
effects as seen, when the wind, blowing over the face of the sea and
earth, removes and carries with it such things as are not fixed to
the general mass. And to represent the storm accurately you must
first show the clouds scattered and torn, and flying with the wind,
accompanied by clouds of sand blown up from the sea shore, and
boughs and leaves swept along by the strength and fury of the blast
and scattered with other light objects through the air. Trees and
plants must be bent to the ground, almost as if they would follow
the course of the gale, with their branches twisted out of their
natural growth and their leaves tossed and turned about [Footnote
11: See Pl. XL, No. 2.]. Of the men who are there some must have
fallen to the ground and be entangled in their garments, and hardly
to be recognized for the dust, while those who remain standing may
be behind some tree, with their arms round it that the wind may not
tear them away; others with their hands over their eyes for the
dust, bending to the ground with their clothes and hair streaming in
the wind. [Footnote 15: See Pl. XXXIV, the right hand lower sketch.]
Let the sea be rough and tempestuous and full of foam whirled among
the lofty waves, while the wind flings the lighter spray through the
stormy air, till it resembles a dense and swathing mist. Of the
ships that are therein some should be shown with rent sails and the
tatters fluttering through the air, with ropes broken and masts
split and fallen. And the ship itself lying in the trough of the sea
and wrecked by the fury of the waves with the men shrieking and
clinging to the fragments of the vessel. Make the clouds driven by
the impetuosity of the wind and flung against the lofty mountain
tops, and wreathed and torn like waves beating upon rocks; the air
itself terrible from the deep darkness caused by the dust and fog
and heavy clouds.

Of representing the deluge (607-609).