( H45 ) 
That end which is put into the Month, in order to dta^w 
in the Air, is reprefented by DEF. 
This Glafs Tube being open at A I K is to be fill*d with 
a piece of Linnen, which we call Gawfe or.Muflin, or elfe 
a little bit of Spunge,of fuch a fize that it might be put into 
the Tube without preffing, and that a Thread or String 
might be faftned to it, in order to pull the Spunge or Lin 
nen out of the Tube, as is to be feen in K L, and this Rag 
or Spunge is to be moiften'd in Balfam good for the Lungs, 
before it is put into the Tube. See BCGH./ 
But confidering, that if the faid Spunge did not touch 
the fides of the Giafsin every part,tlie Air would pafsby it, 
where there was no refiftance,as alfo that theAir would diffi- 
cultly pafs thro theLinnen orSpunge that was dipt inBalfam, 
efpecially if that were thick, I rejefted this Tube alfo, and 
took another of the fame length and breadth with the for- 
mer, fave only that this laft Tube was very near of the 
fame fizt throughout. 
I rejcfted this Tube alfo after all my preparations, and 
I took another Tube of the fame length and bignefs with 
the tormer, with this difference only, that it was through- 
out of the fame fize. 
This Tube^which is reprefented byTab.2. Fig 2. M N O P, 
&c> I ftopt at each end with a Cork as at MNW X and 
PQ.ST. 
In the uppermoft Cork PQST, I made a little round 
Hole quite thro, wherein I (Irongly infinuated a frniU 
Glafs Tube R, and To alfo I perforated the other] Cork 
MNWX. 
Having done this, I thruft into the lowermoft Cork a- 
nother long Crooked Glafs Tube which I had prepared on 
purpofe, and it is defcrib*d by the Letters Y Z. 
This laft Tube Y Z was taper 'd into a {lender end as Z 
a, with the intent, that the Air when fuckt in atR fliould 
come in kifurely at the ftrait paffage Z A. 
Having thus difpofed the great Tube, with the Cork fo 
ftrongly skrew'd in it, and the fmall Tube in the Cork, that 
P p ppp p p not 
