The Introduction.
phea os Parts will follow upon the abscissio11
qr relaxation of their Nerves i but is we con-
sider what alteration mud inevitably happen
in the Tom of those Parts, whole Nerves are
divided or relaxed, we sliould not be much
at a loss in asligning a Causc for that Phe-
nomenon. That the Trunks of Nerves are
composed of divers Fajciculi os Fibriild lying
parallel to each other, is what ocular de-
monstration evinceth 5 but by the help of
our Glalles those Fibril, which before
scarcely appeared to Us, will discover them-
selves to be sliil made up of divers Others;
and all of Them full of Pores 5 And is by
chance you discover a (Ingle Fibrilla, as I
have sometimes done, you will find its sub-
stance porous ; but (if I maybe allowed to
calculate its dimensions by the lame Micro-
[cope) it does not f eem to exceed the Hun-
dredth part of a Hair : Its contents in thole
curious fine Cells or Pores mull neccslanly
be very subtil 5 nor will I contend with
thofe who will call them Animal Spirits, or
an Aerial Body, such as the Materia Primi,
or Sccandi Elementi, of - Des Cartes,, nor Hi all
1 concern my self with an account os the
Tranimhsion or derivation of this subtile
matter from the Great Fountains, whether
of the Brain or Bloud Vellels 9 parting
immediately between the Nervous FafiXuli,
sincc
\ ' I • W • • • ■ :' : st :
phea os Parts will follow upon the abscissio11
qr relaxation of their Nerves i but is we con-
sider what alteration mud inevitably happen
in the Tom of those Parts, whole Nerves are
divided or relaxed, we sliould not be much
at a loss in asligning a Causc for that Phe-
nomenon. That the Trunks of Nerves are
composed of divers Fajciculi os Fibriild lying
parallel to each other, is what ocular de-
monstration evinceth 5 but by the help of
our Glalles those Fibril, which before
scarcely appeared to Us, will discover them-
selves to be sliil made up of divers Others;
and all of Them full of Pores 5 And is by
chance you discover a (Ingle Fibrilla, as I
have sometimes done, you will find its sub-
stance porous ; but (if I maybe allowed to
calculate its dimensions by the lame Micro-
[cope) it does not f eem to exceed the Hun-
dredth part of a Hair : Its contents in thole
curious fine Cells or Pores mull neccslanly
be very subtil 5 nor will I contend with
thofe who will call them Animal Spirits, or
an Aerial Body, such as the Materia Primi,
or Sccandi Elementi, of - Des Cartes,, nor Hi all
1 concern my self with an account os the
Tranimhsion or derivation of this subtile
matter from the Great Fountains, whether
of the Brain or Bloud Vellels 9 parting
immediately between the Nervous FafiXuli,
sincc
\ ' I • W • • • ■ :' : st :