have, if it saw a thousand Candles: On
the contrary, if the interior extremities of the nerves are not shaken,
though the object be present, it causes no sensation; whence it comes, that
if a strong Ligature be made upon the middle of the Arm, and the hand be
then prickt, no pain is felt, because the shaking of the nerves that are
pricked, being stopped by the Ligature, cannot reach to the extremities of
the Nerves, that are within the Brain.

* * * * *

_Advertisement._

The following _Errata_, left by the _Press_ in _Num._ 16, the _Reader_ is
desired thus to correct.

Page 269. lin 27. read, _motion of B above the Center; G. is also_, with a
_Semi-colon_ after the word _Center_. p. 274. l. 13, r. _it to do to the_.
p. 277. l. 24. r. _natural days_. p. 281. l. 16. r. _of his_. ib. l. 27. r.
_a notion_. p. 293. l. 4. r. _enough without_. ib. l. 43. r. _to the Sine
of_. p. 294. l. 1. r. _to the Sine of_.

* * * * *

_LONDON_,

Printed for _John Martin_ and _James Alestry_, Printers to the Royal
Society. 1666.

{311}

* * * * *

_Numb._ 18.

PHILOSOPHICAL
_TRANSACTIONS._

* * * * *

_Munday_, _October_ 22. 1666.

* * * * *

The Contents.

__Patterns_ of the _Tables_ proposed to be made for _Observing of
Tides_; promised in the next foregoing _Transactions_. Other
_Inquiries_ touching the Sea. Some Considerations touching the
_Parenchymous_ parts of the Body. Observables concerning
_Petrification_. A Relation from _Paris_, of a kind of _Worms_, that
eat out Stones. Some promiscuous Observations made in _Somersetshire_.
A Problem for finding the Year of the _Julian Period_, by a new and
very easie Method. An Account of some Books, not long since publish'd,
which are, _1. Tentamina Physico-Theologica de Deo_, Authore _Samuele
Parkero. 2. Honorati Fabri Tractatus duo; Prior, de Plantis et de
Generatione Animalium; Posterior, de Homine. 3. Relation du Voyage de
l'Evesque de Beryte, par la Turquie, la Perse, les Indes_, &c. per
Monsieur de _Bourges_._

* * * * *

__Patterns_ of the _Tables_ proposed to be made for _Observing of Tides_,
promised in the next foregoing _Transactions_; by Sir _Rob. Moray_._

In performance of what was promised in the last of th