t Evening and
good part of the Night. And the next morning I found the Liquor yet higher
by half an inch, _vid._ 151/4 inches: (by reason of the Air that night being
so much warmer, than it had been the day before;) whereas commonly it is
considerably lower in the morning, than over night.

As to the _Baroscope_, for the Weight or Pressure of the Air; I find, that
for the 11, l2, 13, 14, 15, 16, and 17. dayes, the _Mercury_ in the Tube,
was (by the ballancing Pressure of the incumbent Air on the stagnant
Quicksilver, exposed to it) kept up to the height of near 30. Inches above
the surface of the External Quicksilver, (though with some little
variation, as 30, 29-15/16, 29-7/8, 29-13/16 but never so low, all that
time, as 293/4;) which is the greatest height I have know it at, (for I do
not find that I have ever, till then, observed it to be, in my Glasses,
full 30. Inches, though it have been very near it:) the Weather having been
almost continually Foggy, or very thick Mists, all that time. _January_ 18.
it came down to 293/4, in the forenoon; and afternoon, to 29-11/16. about the
time the frost began: And _Jan._ 19. it was, at 8. in the morning, come
down to 291/2; at 4. in the afternoon, to 291/4. But at 9. in the evening (when
the Earth quake had intervened) it was risen half an inch, _vid._ to 293/4.
And, by the next morning, fallen again a whole inch, _vid._ to 283/4; which
fall I attribute (at least in part) to the rain that fell in the night.

This being what I observed out of my _Register_ of these Instruments,
(which, if I had then thought of an Earthquake, I {169} should have more
nicely watched) what I have further gathered from Reports, is to this
purpose.

I hear, it was observed at _Blechington_, above 5. miles to the _North_ of
_Oxford_, and so along by _Bostol_, _Horton_, _Stanton-St. Johns_, and so
towards _Whately_, which is about 4. miles _Eastward_ from _Oxford_. Not at
all these places at the same time, but moving forward from _Blechington_
towards _Whately_. For it was at _Stanton_ about 6. of the Clock or later
(as I understand from Mr. _Boyle_, who was there at that time;) but had
been at _Blechington_ a good while sooner. And I am told, that it was taken
notice of by Doctor _Holder_ (a Member of our _Society_) who was then at
_Blechington_, to be observed by those in the further part of the Garden,
some very discernable time before it was observed by those in the House;
creeping forward from