l $im ) 
lat the beft way to fettle this bufioefs, being (bme ^ui^ 
afble Experiments 5 I ftiould recotmnend (becaufe I am not 
fo well accommodated for this purpofe,) (htfe^ or Come of . 
thefe, Experiments 3 to thofe of t he Royal Societjy who are 
in that kind better provided than I, 
1. (That hinted by my Lord Brauncker.y^htihtx a large 
low Tube^ of lefs height than the common Standard (of 
about 29 Inches Englijh, or ij Inch^sFremh^^m^t be made 
to ftandtop-full of C^uickfilver, though a fmall hole be 
left open at the Top 5 at leaft under Water ? I am apt to 
thinkjthatit will rather fink flowly and with a hiffiag noife^ 
than fall fuddenly and filently* 
2. Whether of two poliflied Marbles or metalline Plates> 
the lower will be found to ftick to the upper, in the exhati- 
fted Receiver) longer than is accountable for from the or- 
dinary Counter-ballance in the Torricellian Experiment. 
For though Monfieur Hngens now 5 and Vix, Boyle (if my 
memory do not much fail me) have long fioce intimated 
this from his own Experience 5 yet I judge the Experiment 
worth repeating. And if it be (as I fuppofc it may) found 
to fucceedji fliould think it may proceed from a want of a 
Spring or Elaftick power between the Plates to force them 
afundcr ; and in particular ( fioce with this it hath been 
trycd) that Spirit of Wine is not a Springy body. 
3. Whether a Siphon of unequal Legs will be made to 
Tunj in an cxhaufted Receiver^ with Water or Quickfilver, 
at a greater height than is accountable for 5 which though 
MGnfiQux Hugens have trycd it^ I think it worth repeating 
in this Society. This when it doth fucceed , I take to pro- 
ceed from the Spring of that little remaining Air in the 
Receiver not quite emptied^ 
4*(Which fcems of a like nature with the former,) Whe- 
ther a Tube of greater length than 29 Inches , but fo im- 
merg'd as to be lefs than fo much above the level ^ as CE, 
may not, if filled with well cleanfed Quickfilver, be gent- 
ly lifted up with the Quickfilver in it.not only to I (as when 
it is unpurged) but to H or higher than the ufual Stand- 
aid. 5.(which 
