, and the _Herris_;
amongst which, there is one called _Berneray_, some three miles long, and
{54} more than a mile broad, the length running from _East_ to _West_, as
the _Frith_ lyes. At the _East_ end of this _Island_, where I stayed some
16. or 17. dayes, I _observed_ a very strange Reciprocation of the Flux and
Re-flux of the Sea, and _heard_ of another, no less remarkable.

Upon the _West_ side of the _Long Island_, the Tides, which came from the
_South-west_, run along the Coast, _Northward_; so that during the ordinary
course of the Tides, the Flood runs _East_ in the _Frith_, where _Berneray_
lyes, and the Ebb _West_. And thus the Sea ebbs and flows orderly, some 4.
days before the _full Moon_, and _change_, and as long after (the ordinary
Spring-tides rising some 14. or 15. foot upright, and all the rest
proportionably, as in other places). But afterwards, some 4. days before
the _Quarter-moons_, and as long after, there is constantly a great and
singular _variation_. For _then_, (a _Southerly_ Moon making there the full
Sea) the course of the Tide being _Eastward_, when it begins to flow, which
is about 91/2 of the Clock, not onely continues so till about 31/2 in the
afternoon, that it be high water, but, after it begins to ebb, the Current
runs on still _Eastward_, during the whole Ebb; so that it runs _Eastward_
12 hours together, that is, all day long, from about 91/2 in the morning, til
about 91/2 at night. But then, when the night-Tide begins to flow, the
Current turns, and runs _Westward_ all night, during both Floud & Ebb, for
some 12. hours more, as it did _Eastward_ the day before. And thus the
Reciprocations continue, one Floud and Ebb, running 12 hours _Eastward_,
and another twelve hours _Westward_, till 4. days before the _New_ and
_Full_ Moon; and then they resume their ordinary regular course as before,
running _East_, during the six hours of Floud, and _West_, during the six
of Ebb. And this I observed curiously, during my abode upon the place,
which was in the Moneth of _August_, as I remember.

But the Gentleman, to whom the _Island_ belongs at present, and divers of
his Brothers and Friends, knowing and discreet persons, and expert in all
such parts of Sea-matters, as other _Islanders_ commonly are, though I
shrewdly suspected their skill in Tides, when I had not yet seen what they
told me, and I have now related of these irregular Courses of the Tides,
did most confidently assure me, and so