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science
500 general science
editscience
510 mathematics
edit520 astronomy
edit530 physics
edit540 chemistry
edit550 geology
editearth sciences and geology
560 palaeontology
editfossils and prehistoric life
570 biology
edit580 botany
edit590 zoology
edit- 500 Natural Sciences and Mathemetics
- 501 Philosophy and theory
- 502 Miscellany
- 503 Dictionaries and encyclopedias
- 504 Unassigned
- 505 Serial publications
- 506 Organizations and management
- 507 Education research and related topics
- 508 Natural history
- 509 Historical geographic and persons treatment
- 510 Mathematics
- 511 General principles of mathematics
- 512 Algebra
- 513 Arithmetic
- 514 Topology
- 515 Analysis
- 516 Geometry
- 517 Unassigned
- 518 Numerical analysis
- 519 Probabilities and applied mathematics
- 520 Astronomy and allied sciences
- 521 Celestial mechanics
- 522 Techniques equipment and materials
- 523 Specific celestial bodies and phenomena
- 524 Unassigned
- 525 Earth (Astronomical geography)
- 526 Mathematical geography
- 527 Celestial navigation
- 528 Ephemerides
- 529 Chronology
- 530 Physics
- 531 Classical mechanics solid mechanics
- 532 Fluid mechanics liquid mechanics
- 533 Gas mechanics
- 534 Sound and related vibrations
- 535 Light and infrared and ultraviolet phenomena
- 536 Heat
- 537 Electricity and electronics
- 538 Magnetism
- 539 Modern physics
- 540 Chemistry and allied sciences
- 541 Physical chemistry
- 542 Techniques equipment and materials
- 543 Analytical chemistry
- 544 Unassigned
- 545 Unassigned
- 546 Inorganic chemistry
- 547 Organic chemistry
- 548 Crystallography
- 549 Mineralogy
- 550 Earth sciences
- 551 Geology hydrology and meteorology
- 552 Petrology
- 553 Economic geology
- 554 Earth sciences of Europe
- 555 Earth sciences of Asia
- 556 Earth sciences of Africa
- 557 Earth sciences of North America
- 558 Earth sciences of South America
- 559 Earth sciences of other areas
- 560 Paleontology paleozoology
- 561 Paleobotany fossil microorganisms
- 562 Fossil invertebrates
- 563 Fossil marine and seashore invertebrates
- 564 Fossil mollusks and molluscoids
- 565 Fossil arthropods
- 566 Fossil chordates
- 567 Fossil cold-blooded vertebrates fossil fishes
- 568 Fossil birds
- 569 Fossil mammals
- 570 Life sciences biology
- 571 Physiology and related subjects
- 572 Biochemistry
- 573 Specific physiological systems in animals
- 574 Unassigned
- 575 Specific parts of and systems in plants
- 576 Genetics and evolution
- 577 Ecology
- 578 Natural history of organisms
- 579 Microorganisms fungi and algae
- 580 Plants (Botany)
- 581 Specific topics in natural history
- 582 Plants noted for characteristics and flowers
- 583 Dicotyledons
- 584 Monocotyledons
- 585 Gymnosperms conifers
- 586 Seedless plants
- 587 Vascular seedless plants
- 588 Bryophytes
- 589 Unassigned
- 590 Animals (Zoology)
- 591 Specific topics in natural history
- 592 Invertebrates
- 593 Marine and seashore invertebrates
- 594 Mollusks and molluscoids
- 595 Arthropods
- 596 Chordates
- 597 Cold-blooded vertebrates fishes
- 598 Birds
- 599 Mammals
500: Science and Natural history
501: Science — Philosophy ; or, Philosophy of science
502: Science outlines and introductions and Science — Vocational guidance
503: Science — Dictionaries and Science — Encyclopedias
505: Science — Periodicals
506: Science — Societies, etc.
507: Research (scientific) and Science — Study and teaching
508: Collections of scientific essays and papers
509: Science — History and Science in particular countries and regions
510: Mathematics
511: Arithmetic
512: Algebra
513: Geometry
514: Trigonometry and Topology
515: Calculus and Mathematical analysis
516: Geometry, Algebraic
518: Numerical analysis
519: (Probabilities and Mathematical statistics) ; or, Probability and statistics
520: Astronomy
521: Theoretical astronomy and Celestial mechanics
522: Spherical astronomy and Astronomy — Observations
523: Descriptive astronomy and The universe and heavenly bodies
525: Earth
526: Geodesy
527: Navigation
528: Ephemerides and Nautical almanacs
529: Chronology
530: Physics
531: Mechanics
532: Fluid mechanics
533: Gas dynamics and Aerodynamics and Pneumatics
534: Sound
535: Optics and Light
536: Heat and Thermodynamics
537: Electricity
538: Magnetism
539: Nuclear physics and Matter
540: Chemistry
541: Chemistry, Physical and theoretical ; or, Physical chemistry and Theoretical chemistry
542: Chemical laboratories
543: Chemistry, Analytic
546: Chemistry, Inorganic
547: Chemistry, Organic
548: Crystallography
549: Mineralogy
550: Geology and Earth sciences
551: Physical geology and Geodynamics
552: Petrology and Rocks and Minerals
553: Geology, Economic
554: Geology — Europe
555: Geology — Asia
556: Geology — Africa
557: Geology — North America
558: Geology — South America
559: Geology of Oceania, polar, and extraterrestrial regions
559.4: Geology — Australia
559.9: Astrogeology
560: Paleontology
561: Paleobotany
562-565: Invertebrates, Fossil
563: Protozoa, Fossil
564: Mollusks, Fossil
565: Arthropoda, Fossil
566-569: Vertebrates, Fossil
567: Fishes, Fossil and Amphibians, Fossil and Reptiles, Fossil
567.9: Dinosaurs
568: Birds, Fossil
569: Mammals, Fossil
570: Biology and Anthropology
571: Prehistoric peoples
572: Anthropology
573: Physical anthropology and Human evolution and Human beings — Origin
575: Evolution (Biology) and Genetics
576: Microbiology
577: Life (Biology)
578: Microscopy
579: Biological specimens
580: Botany
581: Plant physiology and Plant anatomy
582: Phanerogams and Trees
583: Dicotyledons
584: Monocotyledons
585: Gymnosperms
586-589: Cryptogams
587: Pteridophyta
588: Bryophytes
590: Zoology
591: Animal physiology
592-595: Invertebrates
593: Protozoa
594: Mollusks
595: Arthropoda and Worms
596-599: Vertebrates
597: Fishes and Amphibians and Reptiles
598: Birds
599: Mammals
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