34. Shews ] that the Caufe of the Afcenfion of Liquors in 
Syringes is to be deriv'd from the Preflure of the Air. 
35. Shews ? that upon the Preflure of the Air depends the flick- 
ing of Cupping-Glafles to the fleftiy parts they are apply 'd to # 
$6. About the making , without heat 5 a Cupping-Glafs to 
lift up a great weight. 
37. Shews , that Bellows , whofe Nofe is very well ft opt, 
will open of themfelves , when the Preflure of the External Air 
is taken off, 
38. About an attempt to examine the Motions and Senfibili* 
ty of the Cartefian Materia Subttlis 5 with a Pair of Bellows (made 
of a Bladder) in the exhaufted Receiver. 
3 9. Contains a further attempt to profecute the Inquiry 
propos'd in the fore-going Experiment : Firft with a Syringe and 
a Rather 5 then with a Syringe in Water 5 where 'tis examin'dj 
if there be an ^Etber or Materia Subttlis , what kind of body it 
muft be : with a Confirmation of the 3 4th Experiment. 
40. About the falling, in the exhaufted Receiver > of a light 
Body 3 fitted to have its motion vifibly varied by afmall refift^ 
ance of the Air : where is mention'd a Defign to try this way^wha t 
the degrees of Celerity would be of defcending Bodies in an ex- 
haufted Receiver. Dire&ions given,which way to lengthen Re- 
ceivers for the Trial of this and other Experiments. 
41* About the propagation of Sounds in the exhaufted Re- 
ceiver: Two Trials performed by the contrivance defcribed as 
necefTary for this and divers other Experiments : Where alfo is ex- 
amin'd anaffertionof Mer{ennus > and a Propofalofhis ftiewrito 
be unpra&icable , &c. 
41, About the breaking of a Glafs-drop in an exhaufted Re- 
ceiver , wherein an Hypothecs, afcribing the Caufe of the break- 
ing of them to the force of the External Anys examin d, 
43. Concerning the Production of Light in the exhaufted Re* - 
ceiver* 
4$. Touching the Prbdudion of a. kind of Halo and Colours 
in fuch a Receiver : The reafon of it proposed., with a fuggeftion 5 
that the fame caufe might have been of that Apparition of Lig h.c " 
mentioned in the formerly publifht Experiments. 
45, Abonr the Produdlioa of Heat by Attrition in the ex- 
haSuftedReceiver^ . 1 \m a in 
4^^AboutiheiIwXkingof Qyick-Lime -in ii/^. 
