other four are placed in a quite contrary position,
thereby to keep the body backwards when there is occasion.

[15]The body, as in other larger Insects, consists of three regions or
parts; the hinder or belly A, seems covered with one intire shell, the
middle, or chest, seems divided into two shells BC. which running one
within the other, the Mite is able to shrink in and thrust out as it finds
occasion, as it can also the snout D. The whole body is pretty transparent,
so that being look'd on against the light, divers motions within its body
may be perceived; as also all the parts are much more plainly delineable,
then in other postures, to the light. The shell, especially that which
covers the back, is curiously polisht, so that 'tis easie to see, as in a
_convex_ Looking-glass, or _foliated_ Glass-ball, the picture of all the
objects round about; up and down, in several parts of its body, it has
several small long white hairs growing out of its shell, which are often
longer then the whole body, and are represented too short in the first and
second Figures; they seem all pretty straight and plyable, save only two
upon the fore-part of its body, which seem to be the horns, as may be seen
in the Figures; the first whereof is a prospect of a smaller sort of Mites
(which are usually more plump) as it was _passant_ to and fro; the second
is the prospect of one fixt on its tail (by means of a little mouth-glew
rub'd on the object plate) exhibiting the manner of the growing of the
legs, together with their several joynts.

This Creature is very much diversify'd in shape, colour, and divers other
properties, according to the nature of the substance out of which it seems
to be ingendred and nourished, being in one substance more long, in another
more round, in some more hairy, in others more smooth, in this nimble, in
that slow, here pale and whiter, there browner, blacker, more transparent,
&c. I have observed it to be resident almost on all kinds of substances
that are mouldy, or putrifying, and have seen it very nimbly meshing
through the thickets of mould, and sometimes to lye _dormant_ underneath
them; and 'tis not unlikely, but that it may feed on that vegetating
substance, _spontaneous Vegetables_ seeming a food proper enough for
_spontaneous Animals_,

But whether indeed this Creature, or any other, be such or not, I cannot
positively, from any Experiment, or Observation, I have yet made,
determine. But, as I formerl