DeweyDecimalSystem|Natural_sciences_and_mathematics

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:500 Natural sciences & mathematics

:501 Philosophy & theory

:502 Miscellany

:503 Dictionaries & encyclopedias

:504 Not assigned or no longer used

:505 Serial publications

:506 Organizations & management

:507 Education, research, related topics

:508 Natural history

:509 Historical, areas, persons treatment

:510 Mathematics

:511 General principles

:512 Algebra & number theory

:513 Arithmetic

:514 Topology

:515 Analysis

:516 Geometry

:519 Probabilities & applied mathematics

:520 Astronomy & allied sciences

:521 Celestial mechanics

:522 Techniques, equipment, materials

:523 Specific celestial bodies & phenomena

: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 & related vibrations

:535 Light & paraphotic phenomena

:536 Heat

:537 Electricity & electronics

:538 Magnetism

:539 Modern physics

:540 Chemistry & allied sciences

:541 Physical chemistry & theoretical chemistry

:542 Techniques, equipment, materials

:543 Analytical chemistry

:544 Qualitative analysis

:545 Quantitative analysis

:546 Inorganic chemistry

:547 Organic chemistry

:548 Crystallography

:549 Mineralogy

:550 Earth sciences

:551 Geology, hydrology, 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

:562 Fossil invertebrates

:563 Fossil primitive phyla

:564 Fossil Mollusca & Molluscoidea

:565 Other fossil invertebrates

:566 Fossil Vertebrata (Fossil Craniata)

:567 Fossil cold-blooded vertebrates

:568 Fossil Aves (Fossil birds)

:569 Fossil Mammalia

:570 Life sciences

:572 Human races

:573 Physical anthropology

:574 Biology

:575 Evolution & genetics

:576 Microbiology

:577 General nature of life

:578 Microscopy in biology

:579 Collection and preservation

:580 Botanical sciences

:581 Botany

:582 Spermatophyta (Seed-bearing plants)

:583 Dicotyledones

:584 Monocotyledones

:585 Gymnospermae (Pinophyta)

:586 Cryptogamia (Seedless plants)

:587 Pteridophyta (Vascular cryptograms)

:588 Bryophyta

:589 Thallobionta & Prokaryotae

:590 Zoological sciences

:591 Zoology

:592 Invertebrates

:593 Protozoa, Echinodermata, related phyla

:594 Mollusca & Molluscoidea

:595 Other invertebrates

:596 Vertebrata (Craniata, Vertebrates)

:597 Cold-blooded vertebrates Fishes

:598 Aves (Birds)

:599 Mammalia (Mammals)