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Melvil Decimal System: 551.480

Wording: Mathematics and Science > Earth sciences & geology > Physical and Dynamic Geology > Surface features of the earth > Rivers; Lakes > Not set

Dewmoji: πŸ”¬ > 🌎 > πŸŒ‹ > ? > ? > ?

0
Information
195,291
ℹ️
1
Philosophy and Psychology
181,886
πŸ’­
2
Religion
459,268
πŸ™πŸ½
3
Social Sciences
1,012,288
πŸ‘«
4
Language
129,832
πŸ’¬
5
Mathematics and Science
321,836
πŸ”¬
6
Technology
748,891
πŸ’‘
7
Arts and Recreation
692,253
🎨
8
Literature
923,945
πŸ“š
9
Biography and History
588,112
πŸ—Ώ
50
General Science
24,812
πŸ”¬
51
Mathematics
61,768
βž—
52
Astronomy
17,348
🌌
53
Physics
34,083
🍎
54
Chemistry
21,970
βš—
55
Earth sciences & geology
28,081
🌎
56
Fossils & prehistoric life
6,367
πŸ’€
57
Life Sciences
45,860
🐠
58
Botany
17,589
🌿
59
Zoology
63,958
🐼
550
Geology
3,148
🌎
551
Physical and Dynamic Geology
19,025
πŸŒ‹
552
Lithology; Petrography
1,349
🀘
553
Economic Geology
2,038
πŸ’²
554
Europe
367
πŸ—
555
Asia
101
πŸ…
556
Africa
90
🐘
557
North America
1,556
558
South America
29
559
Pacific, Oceania, and other planets
378
🐨
551.0
251
551.1
Structure of the earth as a whole
500
551.2
Seismology
1,547
551.3
Erosion and deposition
997
551.4
Surface features of the earth
5,985
551.5
Meteorology; Climate
3,963
☁️
551.6
Metamorphism
2,155
551.7
Historical geology
912
551.8
Structural geology
389
551.9
Agents of geologic work
228
551.40
44
551.41
Continents
371
551.42
Islands
84
551.43
Mountains; Valleys; Orology
190
551.44
Caves
283
551.45
Plains
294
551.46
Oceans
1,982
551.47
Ocean currents
181
551.48
Rivers; Lakes
1,293
551.49
Springs; Wells; Ground water
307
551.480
125
551.481
2
551.482
64
551.483
199
551.484
32
551.485551.486551.487551.488
12
551.489
84
551.4800551.4801
26
551.4802
28
551.4803
4
551.4804551.4805551.4806
1
551.4807
11
551.4808551.4809
54

Works under MDS 551.480

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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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