was converted by his Dissections, and could not but own a
Supreme Being upon a Survey of this his Handy-work. There were, indeed,
many Parts of which the old Anatomists did not know the certain Use; but
as they saw that most of those which they examined were adapted with
admirable Art to their several Functions, they did not question but
those, whose Uses they could not determine, were contrived with the same
Wisdom for respective Ends and Purposes. Since the Circulation of the
Blood has been found out, and many other great Discoveries have been
made by our modern Anatomists, we see new Wonders in the Human Frame,
and discern several important Uses for those Parts, which Uses the
Ancients knew nothing of. In short, the Body of Man is such a Subject as
stands the utmost Test of Examination. Though it appears formed with the
nicest Wisdom, upon the most superficial Survey of it, it still mends
upon the Search, and produces our Surprize and Amazement in proportion
as we pry into it. What I have here said of an Human Body, may be
applied to the Body of every Animal which has been the Subject of
Anatomical Observations.

The Body of an Animal is an Object adequate to our Senses. It is a
particular System of Providence, that lies in a narrow Compass. The Eye
is able to command it, and by successive Enquiries can search into all
its Parts. Could the Body of the whole Earth, or indeed the whole
Universe, be thus submitted to the Examination of our Senses, were it
not too big and disproportioned for our Enquiries, too unwieldy for the
Management of the Eye and Hand, there is no question but it would appear
to us as curious and well-contrived a Frame as that of an Human Body. We
should see the same Concatenation and Subserviency, the same Necessity
and Usefulness, the same Beauty and Harmony in all and every of its
Parts, as what we discover in the Body of every single Animal.

The more extended our Reason is, and the more able to grapple with
immense Objects, the greater still are those Discoveries which it makes
of Wisdom and Providence in the Work of the Creation. A Sir _Isaac
Newton_, who stands up as the Miracle of the Present Age, can look
through a whole Planetary System; consider it in its Weight, Number, and
Measure; and draw from it as many Demonstrations of infinite Power and
Wisdom, as a more confined Understanding is able to deduce from the
System of an Human Body.

But to return to our Speculations on Anatomy. I