Let there be of the Eminentest _Spots_, dispersed over all Quarters of the
Moons Surface, a select number generally agreed on, to be constantly made
use of, to this purpose, in all parts of the World. As, for Example, those,
which _M. Hevelius_ calleth,

{ Sinai.
{
{ AEthna. { Besbicus. { Maeotis.
Mons { Insula. { Palus {
{ Porphyrites. { Creta. { Maraeotis.
{ Lacus Niger Major.
{ Serorum.

Let in each _Eclipse_, not all, but (for instance) three of these _Spots_,
which then lie nearest to the _Ecliptick_, be exactly observed, when they
are first touch'd by the _True_ Shadow, and again, when they are just
compleatly entred into it, and (if you please) also in the _Decrease_ of
the Eclipse, when they are first fully clear from the _True_ Shadow: For
the accurate determinations of which moments of time (that being in this
business of main importance) let there be taken _Altitudes_ of remarkable
_Fixed Stars_ on this {390} side of the _Line_, of such, as lie between the
_AEquator_ and _Tropick_ of _Cancer_; but _beyond_ the _Line_, of such, as
are situate towards the other _Tropick_; and in all places, of such, as at
the time of Observation, are about 4. hours distant from the _Meridian_.

* * * * *

_An Account of some Observations, lately made in _Spain_, by His Excellency
the _Earl of Sandwich_._

The Right Honourable the _Earl of Sandwich_, as he appears eminent in
discharging the Trust, his Majesty hath reposed in him, of Ambassador
Extraordinary to the King of _Spain_; so he forgets not in the midst of
that Employment, that he is a Member of the _Royal Society_; but does from
time to time, when his weighty State-Negotiations do permit, imploy himself
in making considerable Observations of divers kinds, both _Astronomical_
and _Physiological_; and communicateth the same to the said _Society_; as
for instance, lately, what he has observ'd concerning the _Solar Eclipse_
in _June_ last, the Suns height in the Solstice, and also the Latitude of
_Madrid_, esteeming by the Suns Altitude in the _Solstice_, and by other
Meridian Altitudes, the _Latitude_ of _Madrid_ to be 40 deg. 10 min; which
differs considerably from that assigned by others; the General Chart of
_Europe_ giving to it 41 deg. 30 min. the Ge