HomeGroupsTalkZeitgeist

Melvil Decimal System: 541.042

Wording: Mathematics and Science > Chemistry > Physical; Theoretical > Not set > Not set > Not set

Dewmoji: ๐Ÿ”ฌ > โš— > ๐Ÿ’ญ > ? > ? > ?

0
Information
183,829
โ„น๏ธ
1
Philosophy and Psychology
172,351
๐Ÿ’ญ
2
Religion
443,755
๐Ÿ™๐Ÿฝ
3
Social Sciences
952,115
๐Ÿ‘ซ
4
Language
123,707
๐Ÿ’ฌ
5
Mathematics and Science
297,296
๐Ÿ”ฌ
6
Technology
692,375
๐Ÿ’ก
7
Arts and Recreation
669,452
๐ŸŽจ
8
Literature
891,726
๐Ÿ“š
9
Biography and History
567,666
๐Ÿ—ฟ
50
General Science
23,864
๐Ÿ”ฌ
51
Mathematics
56,683
โž—
52
Astronomy
16,316
๐ŸŒŒ
53
Physics
30,054
๐ŸŽ
54
Chemistry
19,002
โš—
55
Earth sciences & geology
26,281
๐ŸŒŽ
56
Fossils & prehistoric life
6,175
๐Ÿ’€
57
Life Sciences
40,856
๐Ÿ 
58
Botany
16,495
๐ŸŒฟ
59
Zoology
61,570
๐Ÿผ
540
Chemistry
4,495
โš—
541
Physical; Theoretical
4,143
๐Ÿ’ญ
542
Chemical laboratories
305
๐Ÿ”ฌ
543
Analytic
1,836
๐ŸŒˆ
544
Qualitative Analysis [No longer used]
178
545
Quantitative Analysis [No longer used]
134
546
Inorganic
1,691
โšจ
547
Organic
4,662
โŒฌ
548
Crystallography
633
๐Ÿ’Ž
549
Mineralogy
925
โš’
541.0
147
541.1
2
541.2
Atomic theory
1,028
541.3
Physical chemistry
2,403
541.4
Various types of compounds
1
541.5
Molecular types
8
541.6
Compound radicals
541.7
Allotropy
35
541.8
3
541.9
Other general subjects
16
541.00
1
541.01
16
541.02
22
541.03541.04
65
541.05
4
541.06541.07
18
541.08
18
541.09
2
541.040541.041541.042
65
541.043541.044541.045541.046541.047541.048541.049
541.0420541.0421
32
541.0422
7
541.0423
1
541.0424
6
541.0425541.0426541.0427541.0428541.0429

Works under MDS 541.042

1–50 of 58 ( next )titles | covers | shelf
( next )

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.

About | Contact | Privacy/Terms | Help/FAQs | Blog | Store | APIs | TinyCat | Legacy Libraries | Early Reviewers | Common Knowledge | 122,440,548 books! | Top bar: Always visible