Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
Text
Text Image
Image
XML
Thumbnail overview
Document information
None
Concordance
Figures
Thumbnails
Page concordance
<
1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
451 - 480
481 - 510
511 - 540
541 - 570
571 - 600
601 - 630
631 - 660
661 - 690
691 - 701
>
Scan
Original
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
<
1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
451 - 480
481 - 510
511 - 540
541 - 570
571 - 600
601 - 630
631 - 660
661 - 690
691 - 701
>
page
|<
<
of 701
>
>|
<
archimedes
>
<
text
>
<
body
>
<
chap
>
<
p
type
="
main
">
<
s
>
<
pb
xlink:href
="
040/01/655.jpg
"
pagenum
="
89
"/>
ſign that there is no need of opening it; and if there be any oc
<
lb
/>
caſion to open it, it is eaſily done. </
s
>
<
s
>As for the reſt your Lordſhip
<
lb
/>
may pleaſe to keep account of all the particulars that occur, for
<
lb
/>
the memory of things paſt is our Tutreſſe in thoſe that are to
<
lb
/>
come. </
s
>
<
s
>If occaſion ſhall offer, I intreat you to bow humbly in
<
lb
/>
my name to His Highneſs the Grand Duke, and the moſt Serene
<
lb
/>
Prince
<
emph
type
="
italics
"/>
Leopold
<
emph.end
type
="
italics
"/>
; and to attend the ſervice of Their Highneſſes, for
<
lb
/>
you ſerve I rinces of extraordinary merit; And to whom I my
<
lb
/>
ſelf am alſo exceedingly obliged. </
s
>
<
s
>In the controverſies that ariſe
<
lb
/>
reſpect the pious end of ſpeaking the Truth, for then every
<
lb
/>
thing will ſucceed happily. </
s
>
<
s
>I kiſs the hands of
<
emph
type
="
italics
"/>
Padre Franceſco,
<
emph.end
type
="
italics
"/>
<
lb
/>
of
<
emph
type
="
italics
"/>
Sig. </
s
>
<
s
>Bartolotti,
<
emph.end
type
="
italics
"/>
and of your Lordſhip.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>
<
emph
type
="
italics
"/>
Rome, 14. March
<
emph.end
type
="
italics
"/>
1642.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>
<
emph
type
="
italics
"/>
Your Honours
<
emph.end
type
="
italics
"/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
>
<
emph
type
="
italics
"/>
most Obliged Servant
<
emph.end
type
="
italics
"/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
>D.
<
emph
type
="
italics
"/>
BENEDETTO CASTELLI.
<
emph.end
type
="
italics
"/>
</
s
>
</
p
>
<
p
type
="
main
">
<
s
>Vpon this occaſion I will here inſert a Diſcourſe that I made
<
lb
/>
upon the Draining and improvement of the
<
emph
type
="
italics
"/>
Pontine Fens,
<
emph.end
type
="
italics
"/>
<
lb
/>
for that I think that whatſoever may be done well and to pur
<
lb
/>
poſe in this matter hath abſolute dependance on the perfect know
<
lb
/>
ledge of that ſo important Propoſition, by me demonſtrated and
<
lb
/>
explained in my Treatiſe of the
<
emph
type
="
italics
"/>
Menſuration
<
emph.end
type
="
italics
"/>
of
<
emph
type
="
italics
"/>
Running Wa
<
lb
/>
ters,
<
emph.end
type
="
italics
"/>
namely, That the ſame water of a River doth continually
<
lb
/>
change Meaſures, according as it altereth and changeth the ve
<
lb
/>
locity of its courſe; ſo that the meaſure of the thickneſſe of a
<
lb
/>
River in one Site, to the meaſure of the ſame River in another
<
lb
/>
Site, hath the ſame proportion reciprocally that the velocity in
<
lb
/>
this ſite hath to the velocity in the firſt ſite. </
s
>
<
s
>And this is a Truth
<
lb
/>
ſo conſtant and unchangeable, that it altereth not in the leaſt
<
lb
/>
point on any occurrences of the Waters that change: and
<
lb
/>
being well underſtood, it openeth the way to the knowledge of
<
lb
/>
ſundry advertiſements in theſe matters, which are all reſolved by
<
lb
/>
this ſole Principle; and from it are derived very conſiderable be
<
lb
/>
nefits; and without theſe it is impoſſible to do any thing with
<
lb
/>
abſolute perfection</
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>