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Melvil Decimal System: 540.2

Wording: Mathematics and Science > Chemistry > Chemistry > Miscellany

Dewmoji: ๐Ÿ”ฌ > โš— > โš— > ?

0
Information
174,831
โ„น๏ธ
1
Philosophy and Psychology
162,225
๐Ÿ’ญ
2
Religion
426,300
๐Ÿ™๐Ÿฝ
3
Social Sciences
883,845
๐Ÿ‘ซ
4
Language
118,460
๐Ÿ’ฌ
5
Mathematics and Science
274,822
๐Ÿ”ฌ
6
Technology
640,979
๐Ÿ’ก
7
Arts and Recreation
654,095
๐ŸŽจ
8
Literature
868,418
๐Ÿ“š
9
Biography and History
553,223
๐Ÿ—ฟ
50
General Science
23,134
๐Ÿ”ฌ
51
Mathematics
51,434
โž—
52
Astronomy
15,272
๐ŸŒŒ
53
Physics
26,427
๐ŸŽ
54
Chemistry
15,675
โš—
55
Earth sciences & geology
24,794
๐ŸŒŽ
56
Fossils & prehistoric life
6,072
๐Ÿ’€
57
Life Sciences
36,865
๐Ÿ 
58
Botany
15,518
๐ŸŒฟ
59
Zoology
59,631
๐Ÿผ
540
Chemistry
4,180
โš—
541
Physical; Theoretical
3,333
๐Ÿ’ญ
542
Chemical laboratories
277
๐Ÿ”ฌ
543
Analytic
1,481
๐ŸŒˆ
544
Qualitative Analysis [No longer used]
160
545
Quantitative Analysis [No longer used]
114
546
Inorganic
1,257
โšจ
547
Organic
3,527
โŒฌ
548
Crystallography
476
๐Ÿ’Ž
549
Mineralogy
870
โš’
540.0
Chemistry
50
540.1
Theory And Instruction
276
540.2
Miscellany
84
540.3
Dictionaries And Encyclopedias
81
๐Ÿ“•
540.4
Essays, lectures, etc.
5
๐Ÿ“„
540.5
Periodicals
18
540.6
Societies
12
540.7
Education And Research
428
540.8
Culture Studies
147
540.9
Biography And History
427
540.20
3
540.21
8
540.22
6
540.23
15
540.24
14
540.25
1
540.26540.27540.28
12
540.29

Works under MDS 540.2

1–50 of 75 ( next )titles | covers | shelf
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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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