1them bemore exactly try'd by the Tori
cellian Experiment, if we could get Tubes
ſo accurately blown and drawn, that the
Cavity were perfectly Cylindrical.
cellian Experiment, if we could get Tubes
ſo accurately blown and drawn, that the
Cavity were perfectly Cylindrical.
To dwell upon all the ſeveral Refle
ctions, that a ſpeculative Wit might
make upon this and the foregoing Expe
riment: (I mean the thirty third and thir
ty ſecond, would require almoſt a Vo
lume, whereas our occaſions will ſcarce
allow us time to touch upon three or
four of the chief Inferences that ſeem de
ducible from them, and therefore we ſhall
content our ſelves to point at thoſe
few.
ctions, that a ſpeculative Wit might
make upon this and the foregoing Expe
riment: (I mean the thirty third and thir
ty ſecond, would require almoſt a Vo
lume, whereas our occaſions will ſcarce
allow us time to touch upon three or
four of the chief Inferences that ſeem de
ducible from them, and therefore we ſhall
content our ſelves to point at thoſe
few.
And firſt, as many other Phænomena
of our Engine, ſo eſpecially, the two
lately mention'd Experiments, ſeem ve
ry much to call in queſtion the receiv'd
Opinion of the Nature or Cauſe of Su
ction. For 'tis true indeed, that when men
ſuck, they commonly uſe ſome manifeſt
endeavour by a peculiar motion of their
Mouthes, Cheſts, and ſome other conſpi
ring parts, to convey to them the body
to be ſuckt in. And hence perhaps they
have taken occaſion, to think that in all
of our Engine, ſo eſpecially, the two
lately mention'd Experiments, ſeem ve
ry much to call in queſtion the receiv'd
Opinion of the Nature or Cauſe of Su
ction. For 'tis true indeed, that when men
ſuck, they commonly uſe ſome manifeſt
endeavour by a peculiar motion of their
Mouthes, Cheſts, and ſome other conſpi
ring parts, to convey to them the body
to be ſuckt in. And hence perhaps they
have taken occaſion, to think that in all