Agricola, Georgius
,
De re metallica
,
1912/1950
Text
Text Image
Image
XML
Thumbnail overview
Document information
None
Concordance
Figures
Thumbnails
List of thumbnails
<
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
591 - 600
601 - 610
611 - 620
621 - 630
631 - 640
641 - 650
651 - 660
661 - 670
671 - 679
>
11
12
13
14
15
16
17
18
19
20
<
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
591 - 600
601 - 610
611 - 620
621 - 630
631 - 640
641 - 650
651 - 660
661 - 670
671 - 679
>
page
|<
<
of 679
>
>|
<
archimedes
>
<
text
>
<
body
>
<
chap
>
<
pb
pagenum
="
72
"/>
<
p
type
="
main
">
<
s
>Lastly, the seams, which are the very finest stringers (
<
emph
type
="
italics
"/>
fibrae
<
emph.end
type
="
italics
"/>
), divide
<
lb
/>
the rock, and occur sometimes frequently, sometimes rarely. </
s
>
<
s
>From
<
lb
/>
whatever direction the vein comes, its seams always turn their heads
<
lb
/>
toward the light in the same direction. </
s
>
<
s
>But, while the seams usually run
<
lb
/>
from one point of the compass to another immediately opposite it, as
<
lb
/>
for instance, from east to west, if hard stringers divert them, it may
<
lb
/>
happen that these very seams, which before were running from east to
<
lb
/>
west, then contrariwise proceed from west to east, and the direction of
<
lb
/>
the rocks is thus inverted. </
s
>
<
s
>In such a case, the direction of the veins is
<
lb
/>
judged, not by the direction of the seams which occur rarely, but by those
<
lb
/>
which constantly recur.</
s
>
</
p
>
<
figure
number
="
40
"/>
<
p
type
="
caption
">
<
s
>A—SEAMS WHICH PROCEED FROM THE EAST. B—THE INVERSE.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>Both veins or stringers may be solid or drusy, or barren of minerals,
<
lb
/>
or pervious to water. </
s
>
<
s
>Solid veins contain no water and very little air. </
s
>
<
s
>The
<
lb
/>
drusy veins rarely contain water; they often contain air. </
s
>
<
s
>Those which
<
lb
/>
are barren of minerals often carry water. </
s
>
<
s
>Solid veins and stringers con
<
lb
/>
sist sometimes of hard materials, sometimes of soft, and sometimes of a
<
lb
/>
kind of medium between the two.</
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>