Classification
prev ...
511 - General principles of mathematics
4
512 - Algebra
2
515 - Analysis
2
516 - Geometry
3
519 - Probabilities & applied mathematics
44
520 - Astronomy & allied sciences
2
521 - Celestial mechanics
1
523 - Specific celestial bodies & phenomena
1
530 - Physics
37
532 - Fluid mechanics; liquid mechanics
2
533 - Gas mechanics
1
534 - Sound & related vibrations
1
535 - Light & infrared & ultraviolet phenomena
3
536 - Heat
1
537 - Electricity & electronics
6
538 - Magnetism
2
539 - Modern physics
7
540 - Chemistry & allied sciences
595
541 - Physical chemistry
47
542 - Techniques, equipment & materials
1
543 - Analytical chemistry
6
546 - Inorganic chemistry
4
547 - Organic chemistry
17
548 - Crystallography
5
549 - Mineralogy
2
550 - Earth sciences
54
551 - Geology, hydrology & meteorology
18
553 - Economic geology
1
560 - Paleontology; paleozoology
1
570 - Life sciences; biology
206
571 - Physiology & related subjects
4
572 - Biochemistry
8
574 - [Unassigned]
2
575 - Specific parts of & systems in plants
1
577 - Ecology
10
578 - Natural history of organisms
1
579 - Microorganisms, fungi & algae
1
580 - Plants (Botany)
2
581 - Specific topics in natural history
1
591 - Specific topics in natural history
1
592 - Invertebrates
1
599 - Mammals
6
600 - Technology
63
610 - Medicine & health
25
612 - Human physiology
10
613 - Personal health & safety
1
614 - Incidence & prevention of disease
1
615 - Pharmacology & therapeutics
9
616 - Diseases
8
617 - Surgery & related medical specialties
4
more ...