fnoWa This feem'd to maniteft^ that the Air, being difcharged 
of the clouds by fiiow, became hghter. 
: I f. I have feldomfeen the change to beverygrear^ at any 
one time. FoTj though I do not now take a deliberate view 
of my Notes, yet 1 wonderM once to fee^ that in one day it 
fubfided aboat | of an inch. 
1 6. Oflate I have altered my Method upon the Barometer^ 
obfervingit, as it is before ray Eyes^ all day long, and much . 
ofthenightj being watchful for the moments of every par- 
ticular change^ to examinCj what caufe in the Air and Heaveos' 
may appear for fuch changes. And now my wonder is, to fee, 
how flow it is, it holdingmoft between the nine aed twentieth 
and thirtieth inch of late. 
• 17. JmudinQw (l^nmry 1^. r^6|3 tell you, thattheM^r- 
cury ftands at this time ( as it did alfo yefterday jaquarter a- 
bove JO. inches 5 yet both days. very dark and cloudy^ fome- 
times very thick and mifty Air ; which feldora falls out. For^- 
for the raoft part, I fee it higher in cleareft fetled weather^ 
than in fuch cloudy and mifty Foggs. This thick Air and 
darknefs hath lafted above a week y lately more Cold, and 
Ea^ and North-Eajl wind. 
Ti^^ij'/Jjr the Notes of this Obferving Z)/W;3^ 5 of which Mr, 
Boyle^to whom they were alfo communicated, entertains thefe 
thoughts, that they feem to him very faithfully made, and da 
for the main, agree well enough with his obfervations, as 
far as he remembers, not having them,it feems, at that time, 
when he wrote this, at hand 5 and though it be wiflied b^fe-him^ 
. that the Obfervef s Glafs-Cane had 
. Thisfeemsto bemjhed k' ^een fomewhat bigger ; yet his dili^ 
taufe the. motion of the UqT' . .9^ 1.., 
Jyn^ajh more free in a ^^""^^ ''\^[''^S fo carefully, or ra^ 
wider €a)^, ^her lo skilmily , as is above-mentio- 
nedjis much by him commended . 
