Wikipedia 10K Redux by Reagle from Starling archive. Bugs abound!!!

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DeweyDecimalSystem|Natural_sciences_and_mathematics

: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]])