exercise uses to take breath. This they affirmed to be
the true eause both of the saltness, and the ebbing and
flowing-motion of the Sea, and not the jogging of the
Earth, or the secret influence of the Moon, as some o∣thers
had made the World believe.
After this, the Empress enquired, Whether they
had observed, that all Animal Creatures within the Seas
and other waters, had blood? They answered, That
some had blood, more or less, but some had none. In
Crea-fishes and Lobsters, said they, we perceive but
little blood; but in Crabs, Oysters, Cockles, &c. none
at all. Then the Empress asked them, in what part of
their Bodies that little blood did reside? They an∣swered,
in a small vein, which in Lobsters went through
the middle of their tails, but in Crea-fishes was found
in their backs: as for other sorts of Fishes, some, said
they, had onely blood about their Gills, and others in
some other places of their Bodies; but they had not as
yet observed any whose veins did spread all over their
Bodies. The Empress wondring that there could be
living Animals without Blood, to be better satisfied,
desired the Worm-men to inform her, whether they
had observed Blood in all sorts of Worms? They
answered, That, as much as they could perceive, some
had Blood, and some not; a Moth, said they, had no
Blood at all, and a Lowse had, but like a Lobster, a little
Vein along her back: Also Nits, Snails, and Mag∣gots,
as well as those that are generated out of Cheese