Classification
000 - Computer science, information & general works
5
001 - Knowledge
4
003 - Systems
7
005 - Computer programming, programs & data
1
006 - Special computer methods
6
062 - Organizations in British Isles; in England
4
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
300 - Social sciences
4
330 - Economics
1
333 - Economics of land & energy
9
340 - Law
2
363 - Other social problems & services
2
500 - Natural sciences & mathematics
14
501 - Philosophy & theory
2
507 - Education, research & related topics
1
509 - Historical, geographic & persons treatment
3
510 - Mathematics
3
511 - General principles of mathematics
1
514 - Topology
1
515 - Analysis
11
516 - Geometry
2
518 - Numerical analysis
2
519 - Probabilities & applied mathematics
18
520 - Astronomy & allied sciences
5
523 - Specific celestial bodies & phenomena
8
530 - Physics
1,320
531 - Classical mechanics; solid mechanics
32
532 - Fluid mechanics; liquid mechanics
2
533 - Gas mechanics
1
534 - Sound & related vibrations
4
535 - Light & infrared & ultraviolet phenomena
19
536 - Heat
32
537 - Electricity & electronics
49
538 - Magnetism
29
539 - Modern physics
91
540 - Chemistry & allied sciences
9
541 - Physical chemistry
117
543 - Analytical chemistry
53
546 - Inorganic chemistry
49
547 - Organic chemistry
13
548 - Crystallography
14
549 - Mineralogy
5
550 - Earth sciences
2
551 - Geology, hydrology & meteorology
4
570 - Life sciences; biology
2
571 - Physiology & related subjects
34
572 - Biochemistry
4
577 - Ecology
1
580 - Plants (Botany)
1
more ...