e three angles very
differing all of them from one another.

The meshes likewise, and holes of this reticulated body, are not less
various and irregular: some _bilateral_, others _trilateral_, and
_quadrilateral_ Figures; nay, I have observ'd some meshes to have 5, 6, 7,
8, or 9. sides, and some to have onely one, so exceeding various is the
_Lusus Naturae_ in this body.

As to the outward appearance of this Vegetative body, they are so usuall
everywhere, that I need not describe them, consisting of a soft and porous
substance, representing a Lock, sometimes a fleece of Wooll; but it has
besides these small _microscopical_ pores which lie between the _fibres_, a
multitude of round pores or holes, which, from the top of it, pierce into
the body, and sometimes go quite through to the bottom.

I have observ'd many of these Sponges, to have included likewise in the
midst of their fibrous contextures, pretty large friable stones, which must
either have been inclos'd whil'st this Vegetable was in formation, or
generated in those places after it was perfectly shap'd. The later of which
seems the more improbable, because I did not find that any of these stony
substances were perforated with the _fibres_ of the Sponge.

I have never seen nor been enform'd of the true manner of the growing of
Sponges on the Rock; whether they are found to increase from little to
great, like Vegetables, that is, part after part, or like Animals, all
parts equally growing together; or whether they be _matrices_ or feed-baggs
of any kind of Fishes, or some kind of watry Insect; or whether they are at
any times more soft and tender, or of another nature and texture, which
things, if I knew how, I should much desire to be informed of: but from a
cursory view that I at first made with my _Microscope_, and some other
trials, I supposed it to be some Animal substance cast out, and fastned
upon the Rocks in the form of a froth, or _congeries_ of bubbles, like that
which I have often observ'd on Rosemary, and other Plants (wherein is
included a little Insect) that all the little films which divide these
bubbles one from another, did presently, almost after the substance began
to grow a little harder, break, and leave onely the thread behind, which
might be, as 'twere, the angle or thread between the bubbles, that the
great holes or pores observable in these Sponges were made by the eruption
of the included _Heterogeneous_ substance (whether air, or some