shew, that fluid bodies are made up of small solid particles variously and
strongly mov'd, and may find reason to think there is scarce a surface _in
rerum naturâ_ perfectly smooth. The black spot mn, I ghess to be some small
speck of rust, for that I have oft observ'd to be the manner of the working
of Corrosive Juyces. To conclude, this Edge and piece of a Razor, if it had
been really such as it appear'd through the _Microscope_, would scarcely
have serv'd to cleave wood, much less to have cut off the hair of beards,
unless it were after the manner that _Lucian_ merrily relates _Charon_ to
have made use of, when with a Carpenters Axe he chop'd off the beard of a
sage Philosopher, whose gravity he very cautiously fear'd would indanger
the oversetting of his Wherry.

* * * * *


Observ. III. _Of fine Lawn, or Linnen Cloth._

This is another product of Art, A piece of the finest Lawn I was able to
get, so curious that the threads were scarce discernable by the naked eye,
and yet through an ordinary _Microscope_ you may perceive[4] what a goodly
piece of _coarse Matting_ it is; what proportionable cords each of its
threads are, being not unlike, both in shape and size, the bigger and
coarser kind of _single Rope-yarn_, wherewith they usually make _Cables_.
That which makes the Lawn so transparent, is by the _Microscope_, nay by
the naked eye, if attentively viewed, plainly enough evidenced to be the
multitude of square holes which are left between the threads, appearing to
have much more hole in respect of the intercurrent parts then is for the
most part left in a _lattice-window_, which it does a little resemble,
onely the crossing parts are round and not flat.