to a Mercurial C^Lne, and take all my 
The ExciufioH ef &W Air Notes from it, This Cane is but 35'. 
is here nece^ary , hscap^fe Inches Iong,of a very (lender Cavity, 
Jir bem^ffibjeU to the ope- ^j^j ^hick Glafs. This may eafily be 
rmon of Heat and Cold if conveyed to any place, for Trials. 
Any of it nmatn tn the Ba- xr rr \ c I1 n. -% j, 
rometer, itmlicaufe it to The Veffel for the ftagnacing Mer^ 
vary from JheVoingthe true ^^O'? into which the laid Cane is im- 
Freffure of the Air. merfed, is about two hichesmdc. The 
Mw/ir)' fo well fiird 5 that for feme 
daies it would not fubfide , but hung to the top o^ the Glafs- 
cane. 1 keep kin a Clofet pretty clofe, 9. foot high, 8. foot 
^ broad, i foot long , neer a Window* This I note, becaufe 
poffibly the clofenefs of the room may hinder , that it gives 
not the full of all Changes , as it might in a more paffable 
Air. 
^. In all my Obfervations from May iS. 1664 ^^'^ pre- 
fQnt (December 9. the Quickfilver never afcended but 
very little above 30^ Inches. 
?. It afcended very feldom fo high ( videl. to 30^ Inches) 
chiefly inDecemb, 13 , 166^. the weather being fickle- fair, E- 
vening. 
4. I End hy my Calender of June 22. 1664, at 5-. in the Mor- 
ning, in a time of long fetled fair weather, that the Mercury 
had afcended about half an Inch higher then 30: but I fear 
fome miftakC) becaufe I then took no impreflion of rvonder at 
it j yet for 3* or 4. daies^at that time it continued high,in welL 
fetled, fair and warm weather; moft part above 50. Inches. So 
that I may notej the Mercury to rife as high in the hoVit^ Sum- 
mer, as in the cold eft ^f^'w^^r- weather. 
f . Yet furely I have noted it afcend a little higher for the 
Coldnef^ of the Weather j and very frequently^both ia Win- 
ter - 
