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Melvil Decimal System: 549.1

Wording: Mathematics and Science > Chemistry > Mineralogy > Determinative; Blowpiping

Dewmoji: πŸ”¬ > βš— > βš’ > ?

0
Information
174,374
ℹ️
1
Philosophy and Psychology
161,779
πŸ’­
2
Religion
423,184
πŸ™πŸ½
3
Social Sciences
881,318
πŸ‘«
4
Language
118,009
πŸ’¬
5
Mathematics and Science
273,977
πŸ”¬
6
Technology
639,279
πŸ’‘
7
Arts and Recreation
651,427
🎨
8
Literature
865,204
πŸ“š
9
Biography and History
550,807
πŸ—Ώ
50
General Science
23,066
πŸ”¬
51
Mathematics
51,320
βž—
52
Astronomy
15,210
🌌
53
Physics
26,331
🍎
54
Chemistry
15,630
βš—
55
Earth sciences & geology
24,732
🌎
56
Fossils & prehistoric life
6,049
πŸ’€
57
Life Sciences
36,778
🐠
58
Botany
15,429
🌿
59
Zoology
59,432
🐼
540
Chemistry
4,162
βš—
541
Physical; Theoretical
3,327
πŸ’­
542
Chemical laboratories
277
πŸ”¬
543
Analytic
1,479
🌈
544
Qualitative Analysis [No longer used]
160
545
Quantitative Analysis [No longer used]
114
546
Inorganic
1,257
⚨
547
Organic
3,516
⌬
548
Crystallography
474
πŸ’Ž
549
Mineralogy
864
βš’
549.0
101
549.1
Determinative; Blowpiping
108
549.2
Native elements
8
549.3
Sulfids, tellurids, selenids, arsenids, antimonids, bismuthids
5
549.4
Compounds of chlorin, bromin, iodin, and fluorin
2
549.5
Oxygen compounds
10
549.6
Silicates
80
πŸ–
549.7
Other ternary oxygen compounds
15
549.8
Hydrocarbons
549.9
Geographic distribution
114
🌐
549.10
2
549.11
17
549.12
36
549.13
10
549.14549.15549.16549.17549.18
13
549.19

Works under MDS 549.1

1–50 of 97 ( 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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