* *

_Errata_ to be corrected in Number 18.

Pag. 311. line 18. read _marked_. p. 312. l. 35. r. _Sines_. ib. l. penult.
_Sines_. p. 313. l. 13. r. _Sines_. p. 316. l. 26. r. _that_ for _if_.

* * * * *

_London_, Printed for _John Crook_ neer the _Blew-Anchor_ in _Duck-lane_;
and _Mose Pits_ at the _White-Hart_ in _Little-Britain_.

{353}

* * * * *

_Numb._ 20.

PHILOSOPHICAL
_TRANSACTIONS._

* * * * *

_Munday_, _December_ 17. 1666.

* * * * *

The Contents.

_The Method observed in _Transfusing the Bloud out of one live Animal
into another_: And how this Experiment is like to be improved. Some
Considerations concerning the same. An Accompt of some Sanative Waters
in _Herefordshire_. A farther Accompt of the _Vitriolate_ Water
mention'd _Numb. 18_. together with some other particulars touching
Waters. Inquiries for _Turky_. An Observation about Optick Glasses made
of Rock-Crystal, communicated from _Italy_. A Relation of the Use of
the Grain of _Kermes_ for _Coloration_, from _France_. An Accompt of
some Books lately publisht, _vid. 1_. PINAX Rerum Naturalium
BRITANNICARUM, continens VEGETABILIA, ANIMALIA & Fossilia ANGLIAE,
inchoatus; Auth. _Christophoro Merret_, M.D. _2_. PLACITA PHYLOSOPHICA
_Guarini. 3_. GUSTUS ORGANUM per _Laurentium Bellini_ deprehensum._

* * * * *

The Method observed in _Transfusing the Bloud of one Animal into another._

This Method was promised in the last of these Papers. It was first
practiced by Dr. _Lower_ in _Oxford_, and by him communicated to the
Honourable _Robert Boyl_, who imparted it to the _Royal Society_, as
follows;

First, Take up the _Carotidal_ Artery of the Dog or other Animal, whose
Bloud is to be transfused into another of the {354} same or a different
kind, and separate it from the Nerve of the _Eighth pair_, and lay it bare
above an inch. Then make a strong Ligature on the _upper_ part of the
Arterie, not to be untied again: but an inch below, _videl._ towards the
Heart, make another Ligature of a _running_ knot, which may be loosen'd or
fastned as there shall be occasion. Having made these two knots, draw two
threds under the Artery between the Ligatures; and then open the Artery,
and put in a Quil, and tie the Artery upon the Qui