Classification
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499 - Austronesian & other languages
1
500 - Natural sciences & mathematics
6
520 - Astronomy & allied sciences
2
530 - Physics
2
540 - Chemistry & allied sciences
3
551 - Geology, hydrology & meteorology
22
574 - [Unassigned]
1
576 - Genetics & evolution
4
580 - Plants (Botany)
7
581 - Specific topics in natural history
3
590 - Animals (Zoology)
3
598 - Birds
1
600 - Technology
7
610 - Medicine & health
21
612 - Human physiology
1
613 - Personal health & safety
1
614 - Incidence & prevention of disease
1
615 - Pharmacology & therapeutics
3
616 - Diseases
1
620 - Engineering & allied operations
6
621 - Applied physics
2
628 - Sanitary & municipal engineering
2
630 - Agriculture & related technologies
11
631 - Techniques, equipment & materials
1
658 - General management
6
660 - Chemical engineering
2
700 - The arts; fine & decorative arts
32
701 - Philosophy of fine & decorative arts
1
720 - Architecture
1
770 - Photography, photographs & computer art
1
780 - Music
3
800 - Literature & rhetoric
7
820 - English & Old English literatures
4
831 - German poetry
1
900 - History & geography
75
909 - World history
4
910 - Geography & travel
8
940 - History of Europe
2
941 - British Isles
1
970 - History of North America
1
973 - United States
1
978 - Western United States
1
979 - Great Basin & Pacific Slope region
1
990 - History of other areas
3
994 - Australia
1