1to cauſe the Waters to riſe, and to turn them for the ſervice of
Mills, or the like. Now in theſe Caſes it is ſufficient, that one
erect upon the two extreames of the Weare two Pilaſters either
of Wood or Brick, which with the bottome of the Weare do
compoſe our Regulator, wherewith we may make our deſired
operation, yea the Chanel it ſelf diverted ſhall ſerve, without
making any other diverſion or union. And in brief, if the bu
fineſſes be but managed by a judicious perſon, there may wayes
and helps be made uſe of, according to occaſion, of which it
would be too tedious to ſpeak, and therefore this little that hath
been hinted ſhall ſuſſice.
Mills, or the like. Now in theſe Caſes it is ſufficient, that one
erect upon the two extreames of the Weare two Pilaſters either
of Wood or Brick, which with the bottome of the Weare do
compoſe our Regulator, wherewith we may make our deſired
operation, yea the Chanel it ſelf diverted ſhall ſerve, without
making any other diverſion or union. And in brief, if the bu
fineſſes be but managed by a judicious perſon, there may wayes
and helps be made uſe of, according to occaſion, of which it
would be too tedious to ſpeak, and therefore this little that hath
been hinted ſhall ſuſſice.
CONSIDERATION II.
From what hath been declared, if it ſhall be well under
ſtood, may be deduced many benefits and conveniences,
not onely in dividing of Running Waters for infinite uſes
that they are put to in turning of Corne-Mills, Paper-Mills,
Gins, Powder-Mills, Rice-Mills, Iron Mills, Oil-Mills, Saw
ing-Mills, Mirtle-Mills, Felling-Mills, Fulling-Mills, Silk-Mills,
and ſuch other Machines; but alſo in ordering Navigable Cha
nels, diverting Rivers and Chanels of Waters, or terminating
and limiting the ſizes of Pipes for Fountains: In all which af
fairs there are great errours committed, to the loſſe of much
expence, the Chanels and Pipes that are made, ſometimes not
being ſufficient to carry the deſigned Waters, and ſometimes they
are made bigger than is neceſſary; which diſorders ſhall be
avoided, if the Engineer be adviſed of the things aboveſaid: and
in caſe that to theſe Notions there be added the knowledge of
Philoſophy and Mathematicks, agreeable to the ſublime Diſco
veries of Signore Galilæo, and the further improvement thereof
by Signore Evangeliſta Torricelli, Mathematician to the Grand
Duke of Tuſcany, who hath ſubtilly and admirably handled this
whole buſineſſe of Motion, one ſhall then come to the know
ledge of particular notions of great curioſity in the Theoricks,
and of extraordinary benefit in the Practicks that daily occur in
theſe buſineſſes.
ſtood, may be deduced many benefits and conveniences,
not onely in dividing of Running Waters for infinite uſes
that they are put to in turning of Corne-Mills, Paper-Mills,
Gins, Powder-Mills, Rice-Mills, Iron Mills, Oil-Mills, Saw
ing-Mills, Mirtle-Mills, Felling-Mills, Fulling-Mills, Silk-Mills,
and ſuch other Machines; but alſo in ordering Navigable Cha
nels, diverting Rivers and Chanels of Waters, or terminating
and limiting the ſizes of Pipes for Fountains: In all which af
fairs there are great errours committed, to the loſſe of much
expence, the Chanels and Pipes that are made, ſometimes not
being ſufficient to carry the deſigned Waters, and ſometimes they
are made bigger than is neceſſary; which diſorders ſhall be
avoided, if the Engineer be adviſed of the things aboveſaid: and
in caſe that to theſe Notions there be added the knowledge of
Philoſophy and Mathematicks, agreeable to the ſublime Diſco
veries of Signore Galilæo, and the further improvement thereof
by Signore Evangeliſta Torricelli, Mathematician to the Grand
Duke of Tuſcany, who hath ſubtilly and admirably handled this
whole buſineſſe of Motion, one ſhall then come to the know
ledge of particular notions of great curioſity in the Theoricks,
and of extraordinary benefit in the Practicks that daily occur in
theſe buſineſſes.
And to ſhew, in effect, of what utility theſe Notions are, I
have thought fit to inſert, in this place, the Conſiderations by
me made upon the Lake of Venice, and to repreſent,
at large, by the experience of the laſt year 1641. the moſt Se
rene Erizzo, then Duke of the ſaid Republique. Being
therefore at Venice, in the year aforeſaid, I was requeſted by the
moſt Illuſtrious and moſt Excellent Signore Giovanni Baſa-
have thought fit to inſert, in this place, the Conſiderations by
me made upon the Lake of Venice, and to repreſent,
at large, by the experience of the laſt year 1641. the moſt Se
rene Erizzo, then Duke of the ſaid Republique. Being
therefore at Venice, in the year aforeſaid, I was requeſted by the
moſt Illuſtrious and moſt Excellent Signore Giovanni Baſa-