Agricola, Georgius
,
De re metallica
,
1912/1950
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<
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
51 - 60
61 - 70
71 - 80
81 - 90
91 - 100
101 - 110
111 - 120
121 - 130
131 - 140
141 - 150
151 - 160
161 - 170
171 - 180
181 - 190
191 - 200
201 - 210
211 - 220
221 - 230
231 - 240
241 - 250
251 - 260
261 - 270
271 - 280
281 - 290
291 - 300
301 - 310
311 - 320
321 - 330
331 - 340
341 - 350
351 - 360
361 - 370
371 - 380
381 - 390
391 - 400
401 - 410
411 - 420
421 - 430
431 - 440
441 - 450
451 - 460
461 - 470
471 - 480
481 - 490
491 - 500
501 - 510
511 - 520
521 - 530
531 - 540
541 - 550
551 - 560
561 - 570
571 - 580
581 - 590
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page
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<
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<
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<
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<
chap
>
<
pb
pagenum
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255
"/>
<
p
type
="
main
">
<
s
>The 9th needle of 15
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 9
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 10th needle of 14
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 10
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 11th needle of 13
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 11
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 12th needle of 12
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 12
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 13th needle of 11
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 13
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 14th needle of 10
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 14
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 15th needle of 9
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 15
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 16th needle of 8
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 16
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 17th needle of 7
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 17
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 18th needle of 6
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 18
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 19th needle of 5
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 19
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 20th needle of 4
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 20
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 21st needle of 3
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 21
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 22nd needle of 2
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 22
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 23rd needle of 1
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of silver and 23
<
emph
type
="
italics
"/>
duellae
<
emph.end
type
="
italics
"/>
of gold.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The 24th needle of pure gold</
s
>
</
p
>
<
figure
number
="
138
"/>
<
p
type
="
main
">
<
s
>By the first eleven needles, when they are rubbed on the touchstone, we
<
lb
/>
test what proportion of gold a bar of silver contains, and with the remaining
<
lb
/>
thirteen we test what proportion of silver is in a bar of gold; and also what
<
lb
/>
proportion of either may be in money.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>Since some gold coins are composed of gold and copper, thirteen needles
<
lb
/>
of another kind are made as follows:—</
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>