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( 1501 )

(as he describes it) one of the contain'd Globules slip out
of it, and while the great one lay still, for want of suffi-
cient depth of Water to float in, this little one that came
out had immediately a very quick rotation on its axe; and
what was most surprizing, at the same time it kept an e-
quable revolution about the bigger Globe as the center of
its Orbit, always very nearly at the same distance, tho I
could not perceive any Vortex in the Water which bore it;
and what is yet more remarkable, I saw it stop, and then
make its revolution round the central Body the contrary
way, the rotation on its own axe always continuing. And
when the Water was so far evaporated that all lay at rest,
by the addition of new Water the same motions were re-
new'd. This I thought a very pretty representation of the
Planetary motions about the Sun and I doubt not but a
Cartesian Philosopher would not have been a little pleas'd,
to see in Nature such an instance of such revolutions of an
inanimate Body in such a medium as Water. Indeed I
think it not easy to account for these motions of these
Globules, nor will I to solve the difficulty say in contradi-
ction to Mr Leeuwh, that I believe them Animate, tho I
have formerly seen some not very unlike them both in
shape and motion, which I am satisfy'd are Animals. But
of those (among other things) I last year gave an account to
Sir Ch. Holt, which I hear will shortly be published in the
Transactions.

I can at present think of no other Observations of this
kind to fill up my Paper, unless you should think it worth
your notice, that I find all the Earwigs which I have exa-
min'd by a Microscope, infested with great numbers of
minute Insects, which stick like Lice on many parts of their
Bodies, and especially just under the setting on of their
Head. They are alike on all, and I never found the same
on any other Animal, they are white and shining like Mites,
but much smaller, are round back'd, flat bellied, and have
long Legs, especially the two foremost.

II. Para