rioon{fan,ii ^)^nd continucd(withus)tiH afcout f . of the Clock 
in the afternoon of that day, Jan, 1 9. with fome fiercenefs) and 
the weather,7^«. i9.beingin the morningjClofe ; and cloudy all 
the day,with Hule of Suii-fliine s the Liquor in the Thermo/cope 
was very Httle raifed.by 4. of the Clock afternoon, that is, but 
y6 of an inch (which, had the Sun flione, would, it's likely, have 
been near an Inch:) and after that time(or fomewhat before) 
had there been no confiderable change of weather, it would M 
upon the Sun's fetting have fallen (and probably fo it did, till a- ^ 
bout f. of the Clock, though I took no Obfervation in the in- 
terim. ) But,contrary to what would have been expected, it was || 
at 9. of the Clock at night, higher by J of an inch, than it had 
been at 4* occafioned by the change of weather, the Froft 
fuddenlybreaking^with us, between f . and of the Clock ; a- 
bout which time alfo it began to rain, and continued raining 
that Evening and good part of the Night. And the next morn- 
ing 1 found the Liquor yet higher by half an inch, vU. i y ^ in- 
dies ; (by reafon of the Air that night being fo much warmer, 
than it had been the day before ; ) whereas commonly iris con- 
fcderaWy lower in the morning, than over night. 
As to the Barofcope J for the Weight or Preffure of the Air ; I 
find, that for the 1 1, i:?, 14, i i5, and 1 7. dayes, the M^r- 
cury in the Tube^ was (by the ballancing Preffure of the incum- 
bent Air on theftagnantQuickfilver,expofed to it) kept up to 
the height of near 30. Inches above the furface of the External 
Quickhlver,(though with fome little variation, as 50, 29 29I, 
29 but never folow,all that time,as 294 >) whichis the great- 
eft height I have know it ar, (for I do not find,ihat I have ever, 
tiU then,obferveditto be,in my GlaffcSjfuJl 30; Inches, though 
it have been very near it: the. Weather having been almoft 
contmually Foggy,or very thick Mifts,all that time. January i S. 
it came down to 29 J, in the forenoon • and afternoon to 2Pf§. 
about the time the froft began : And fm. 1 9. it was, at 8. in the 
morning, comedown to 29 j ; at 4. in the afternoon, to 29^. 
But at 9. in the evening(whcn the Earthquake had intervened) j 
it was rifen half an inch^^^'^. to 29 ^.And,by the next mornirg, 
fallen again a whole iKich,t//ii. to aS^; which fail I attribute (at 
leaft in part) to the rain that fell m the night. 
This being what lobferved out of my 7{egifier of thcfe In- 
Jtruments, (which, if 1 had then thought of an Earthquake^ I 
fliould 
