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Melvil Decimal System: 628.502

Wording: Technology > Engineering, contracts > Sanitary; Municipal > Environmental Chemistry > Not set > Not set

Dewmoji: šŸ’” > šŸ”© > šŸš½ > ? > ? > ?

0
Information
196,273
ā„¹ļø
1
Philosophy and Psychology
182,817
šŸ’­
2
Religion
463,619
šŸ™šŸ½
3
Social Sciences
1,017,722
šŸ‘«
4
Language
130,465
šŸ’¬
5
Mathematics and Science
322,970
šŸ”¬
6
Technology
751,859
šŸ’”
7
Arts and Recreation
695,838
šŸŽØ
8
Literature
929,792
šŸ“š
9
Biography and History
592,368
šŸ—æ
60
General Technology
6,985
šŸ’”
61
Medicine
251,982
šŸ’‰
62
Engineering, contracts
128,147
šŸ”©
63
Agriculture & Animal Husbandry
68,016
šŸŒ±
64
Home Economics
130,045
šŸ 
65
Business
119,888
šŸ‘”
66
Chemical Technology
15,663
šŸš€
67
Manufacturing
6,358
šŸ“¦
68
Handicraft and Occupations
15,511
šŸ”Ø
69
Building
9,264
šŸ‘·
620
Engineering
18,961
šŸ”©
621
Mechanical Engineering and Machinery
40,539
šŸ­
622
Mining Engineering and Mines and Mineral Resources
2,834
šŸ•³
623
Military Engineering and Marine Engineering
11,904
āš“
624
Civil Engineering
7,081
šŸŒ‰
625
Road and Railroad
3,893
šŸ›¤
626
--
37
šŸ¤·
627
Hydraulic Engineering
1,379
šŸŒŠ
628
Sanitary; Municipal
6,166
šŸš½
629
Other Branches
35,353
šŸŒæ
628.0
106
628.1
Water Supply Systems
1,838
628.2
Stormwater & Runoff Management
159
628.3
Sewerage & Wastewater Treatment
481
628.4
Waste Management and Disposal
479
628.5
Environmental Chemistry
1,181
628.6
2
628.7
Rural Water Supply & Sanitation Methods
78
628.8
--
20
628.9
Other Branches of Municipal Engineering
1,149
628.50
47
628.51
12
628.52
75
628.53
264
628.54
16
628.55
72
628.56628.57628.58628.59
628.500628.501
14
628.502
19
628.503628.504628.505628.506628.507
2
628.508
1
628.509
11
628.5020628.5021628.5022628.5023628.5024628.5025628.5026628.5027628.5028
19
628.5029

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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