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Melvil Decimal System: 547.750

Wording: Mathematics and Science > Chemistry > Organic > Acids: acid halids, acid anhydrids, sulfo-acids > Not set > Not set

Dewmoji: πŸ”¬ > βš— > ⌬ > ? > ? > ?

0
Information
184,385
ℹ️
1
Philosophy and Psychology
173,011
πŸ’­
2
Religion
444,891
πŸ™πŸ½
3
Social Sciences
956,176
πŸ‘«
4
Language
124,030
πŸ’¬
5
Mathematics and Science
297,976
πŸ”¬
6
Technology
694,518
πŸ’‘
7
Arts and Recreation
670,607
🎨
8
Literature
893,417
πŸ“š
9
Biography and History
568,807
πŸ—Ώ
50
General Science
23,895
πŸ”¬
51
Mathematics
56,778
βž—
52
Astronomy
16,339
🌌
53
Physics
30,187
🍎
54
Chemistry
19,100
βš—
55
Earth sciences & geology
26,354
🌎
56
Fossils & prehistoric life
6,177
πŸ’€
57
Life Sciences
40,976
🐠
58
Botany
16,527
🌿
59
Zoology
61,643
🐼
540
Chemistry
4,515
βš—
541
Physical; Theoretical
4,168
πŸ’­
542
Chemical laboratories
305
πŸ”¬
543
Analytic
1,843
🌈
544
Qualitative Analysis [No longer used]
180
545
Quantitative Analysis [No longer used]
135
546
Inorganic
1,705
⚨
547
Organic
4,685
⌬
548
Crystallography
636
πŸ’Ž
549
Mineralogy
928
βš’
547.0
775
547.1
Cyanogen and its compounds
432
547.2
Hydrocarbons; Fatty series
609
547.3
Alcohols; Phenols
129
547.4
Ethers: simple, compound; haloid
106
547.5
Aldehydes
260
547.6
Ketones; Quinones
117
547.7
Acids: acid halids, acid anhydrids, sulfo-acids
1,039
547.8
Nitroderivates: amines, compound ammoniums, amids, amic acids, azo-bodies, azoxy-bodies, hydrazo-bodies, diazo-bodies
166
547.9
Compounds with metals
4
547.70
164
547.71
18
547.72
35
547.73
17
547.74
2
547.75
163
547.76
4
547.77
13
547.78
132
547.79
10
547.750
31
547.751547.752547.753547.754
3
547.755547.756
30
547.757547.758
14
547.759
547.7500547.7501547.7502
2
547.7503547.7504
29
547.7505547.7506547.7507547.7508547.7509

Works under MDS 547.750

1–25 of 25 titles | covers | shelf

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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