1Experiments.And this height the Wa-
ter reach'd to, though the Pipe were held
in as erected a poſture as we could: For if
it were inclin'd, the Water would fill a
greater part of it, though not riſe higher
in it.And we alſo found, that when the
inſide of the Pipe was wetted before-
hand, the Water would riſe much better
then otherways: But we cauſ'd not all
our flender Pipes to be made ſtraight, but
ſome of them crooked, like Siphons: And
having immerſ'd the ſhorter Leg of one
of theſe into a Glaſs that held ſome fair
Water, we found, as we expected, that
the Water ariſing to the top of the Si-
phon, though that were high enough, did
of it ſelf run down the longer Leg, and
continue running like an ordinary Siphon.
The cauſe of this aſcenſion of the Wa-
ter, appear'd to all that were preſent ſo
difficult, that I muſt not ſtay to enumerate
the various Conjectures that were made
at it, much leſs to examine them; eſpe-
cially, having nothing but bare Conje-
ctures to ſubſtitute in the room of thoſe
I do not approve.We try'd indeed, by
conveying a very flender Pipe and a ſmall
Veſſel of Water into our Engine, whe-
ther or no the Exſuction of the ambient
ter reach'd to, though the Pipe were held
in as erected a poſture as we could: For if
it were inclin'd, the Water would fill a
greater part of it, though not riſe higher
in it.And we alſo found, that when the
inſide of the Pipe was wetted before-
hand, the Water would riſe much better
then otherways: But we cauſ'd not all
our flender Pipes to be made ſtraight, but
ſome of them crooked, like Siphons: And
having immerſ'd the ſhorter Leg of one
of theſe into a Glaſs that held ſome fair
Water, we found, as we expected, that
the Water ariſing to the top of the Si-
phon, though that were high enough, did
of it ſelf run down the longer Leg, and
continue running like an ordinary Siphon.
The cauſe of this aſcenſion of the Wa-
ter, appear'd to all that were preſent ſo
difficult, that I muſt not ſtay to enumerate
the various Conjectures that were made
at it, much leſs to examine them; eſpe-
cially, having nothing but bare Conje-
ctures to ſubſtitute in the room of thoſe
I do not approve.We try'd indeed, by
conveying a very flender Pipe and a ſmall
Veſſel of Water into our Engine, whe-
ther or no the Exſuction of the ambient