d round,
but does firmly contain and hold all its parts united, though many of them
seem as loose as the sand on the Earth, and that the Moon is not mov'd
about its Center; then certainly the turbination cannot be the cause of the
attraction of the Earth, and therefore some other principle must be thought
of, that will agree with all the secundary as well as primary Planets. But
this, I confess, is but a probability, and not a demonstration, which (from
any Observation yet made) it seems hardly capable of, though how successful
future indeavours (promoted by the meliorating of Glasses, and observing
particular circumstances) may be in this, or any other, kind, must be with
patience expected.

* * * * *

_FINIS._

* * * * *

THE TABLE.

Observat. 1. Of the point of a Needle.

_A Description of it: what other Bodies have the sharpest points: of the
ruggedness of polisht Metal. A description of a printed point. Of very
small writing, and the use of it for secret intelligence: the cause of the
coursness of printed lines and points._

Observ. 2. Of the Edge of a Razor.

_A description of it: the causes of its roughness: of the roughness of very
well polisht Optick Glasses._.

Obser. 3. Of fine Lawn.

_A description of it: A silken Flax mention'd, an attempt to explicate the
_Phaenomena_ of it, with a conjecture at the cause of the gloss of Silk._

Observ. 4. Of Tabby.

_A short description of it. A conjecture about the reason why Silk is so
susceptible of vivid colours: and why Flax and Hair is not. A conjecture,
that it way perhaps be possible to spin a kind of artificial Silk, out of
some glutinous substance that may equalize natural Silk._

Observ. 5. Of water'd Silks.

_The great unaccurateness of artificial works. A description of a piece of
water'd Silk; an Explication of the cause of the _Phaenomena_: the way by
which that operation is perform'd: some other _Phaenomena_ mention'd
depending on the same cause._

Observ. 6. Of Glass-Canes.

_The exceeding smallness of some of these Bodies. By what means the
hollowness of these small pipes was discover'd: several _Phaenomena_ of it
mention'd. An attempt to explicate them from the congruity and incongruity
of Bodies: what those proprieties are. A hypothetical explication of
fluidity: of the fluidity of the air, and several other _Phaenomena_ of it:
of congruity & incongruity; illustrated