(This paragraph treats of) aerial animals with five organs of sense: birds with membranous wings, birds with feathered wings, birds with wings in the shape of a box, and birds (which sit on) outspread wings . (All as before; only the following passage is different): 'As long as they are young, they are hatched by their mothers' warmth.' (The rest as above.) (26)

And again it has been said of old: there are beings of manifold birth and origin, (&c., all as in section 1, down to) growing there on the animate or inanimate bodies of manifold movable or immovable creatures, come forth as parasites . These beings feed on the humours of various movable and immovable creatures, &c. And the bodies of these movable and immovable parasites are of manifold colours, (&c., as above). (27)

In the same way vermin generated in filthy substances and in the skin of living animals are to be treated of. (28, 29)

And again it has been said of old: there are some beings of manifold birth and origin, (&c., all as in section 1,

down to) growing thereon (or in) the animate or inanimate bodies of manifold movable or immovable creatures as that (water)-body , which is produced by wind, condensed by wind, and carried along by wind; it goes upwards, when there is an upward wind; it goes downwards, when there is a downward wind; it goes in a horizontal direction, when there is a horizontal wind; (its varieties are) hoar-frost, snow, mist, hailstones, dew, and rain. These beings feed on the humours of these manifold movable and immovable creatures, &c. And the bodies of these (water-lives, viz.) hoar-frost, &c., produced by manifold movable or immovable creatures, are of manifold colours, (&c., as above) . (30)

And again it has been said of old: some beings, born in water, (&c., all similar as in section 1, down to) come forth in water(-bodies) in the water produced by manifold movable or immovable beings. These beings feed on the humours of the water(-bodies) produced by manifold movable and immovable creatures. (The rest similar as above.) (31)

And again it has been said of old: some beings, born in water, (&c., all similar as in section 1, down to) come forth in water-bodies produced by other water-bodies. These beings feed on the humours of those other water-bodies produced by water-bodies. (The rest similar as above.) (32)

And again it has been said of old: some beings, born in water, (&c., all similar as in section 1, down to) come forth as movable creatures in the water

produced by water-bodies. These beings feed on the humours of the water(-bodies) produced by water. (The rest similar as before.) (33)