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Melvil Decimal System: 508.989

Wording: Mathematics and Science > General Science > Natural history > Not set > Not set > Not set

Dewmoji: đŸ”Ŧ > đŸ”Ŧ > ? > ? > ? > ?

0
Information
183,829
ℹī¸
1
Philosophy and Psychology
172,351
💭
2
Religion
443,755
🙏đŸŊ
3
Social Sciences
952,115
đŸ‘Ģ
4
Language
123,707
đŸ’Ŧ
5
Mathematics and Science
297,296
đŸ”Ŧ
6
Technology
692,375
💡
7
Arts and Recreation
669,452
🎨
8
Literature
891,726
📚
9
Biography and History
567,666
đŸ—ŋ
50
General Science
23,864
đŸ”Ŧ
51
Mathematics
56,683
➗
52
Astronomy
16,316
🌌
53
Physics
30,054
🍎
54
Chemistry
19,002
⚗
55
Earth sciences & geology
26,281
🌎
56
Fossils & prehistoric life
6,175
💀
57
Life Sciences
40,856
🐠
58
Botany
16,495
đŸŒŋ
59
Zoology
61,570
đŸŧ
500
General Science
7,255
đŸ”Ŧ
501
Theory And Instruction
2,641
502
Miscellany
1,098
👝
503
Dictionaries And Encyclopedias
600
📕
504
[No longer in use]
128
🤷
505
Periodicals
178
T
506
Societies
280
507
Education And Research
3,316
508
Natural history
5,201
509
Biography And History
3,167
⌛
508.0
462
508.1
166
508.2
Seasons
532
508.3
Environments / Habitats
234
508.4
247
508.5
72
508.6
92
508.7
1,268
508.8
117
508.9
294
508.90508.91508.92
Biography
7
508.93
53
508.94
119
508.95
8
508.96
19
508.97
14
508.98
41
508.99
24
508.980
1
508.981508.982508.983508.984508.985508.986508.987508.988508.989
21
508.9890
2
508.9891508.9892508.9893508.9894508.9895508.9896508.9897508.9898508.9899

Wording

1922 Edition
Modern language
Emoji

"Far Friends"

MDS classes with significant recommendations overlap, excluding ones under the same top-level class.

None

What is MDS?

Melvil stands for "Melvil Decimal System," named after Melvil Dewey, the famous librarian. Melvil Dewey invented his Dewey Decimal System in 1876, and early versions of his system are in the public domain.

More recent editions of his system are in copyright, and the name "Dewey," "Dewey Decimal," "Dewey Decimal Classification" and "DDC" are registered trademarked by OCLC, who publish periodic revisions.

LibraryThing's MDS system is based on the classification work of libraries around the world, whose assignments are not copyrightable. MDS "scheduldes" (the words that describe the numbers) are user-added, and based on public domain editions of the system.

The Melvil Decimal System is NOT the Dewey Decimal System of today. Wordings, which are entered by members, can only come from public domain sources. The base system is the Free Decimal System, a public domain classification created by John Mark Ockerbloom. Where useful or necessary, wording comes from the 1922 edition of the Dewey Decimal System. Language and concepts may be changed to fit modern tastes, or to better describe books cataloged. Wordings may not come from in-copyright sources.

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