Embedded Files
500 Natural Sciences and Mathemetics TF8; TF9
501 Philosophy & theory TF8 – TF5; TF8 – TT
502 Miscellany
503 Dictionaries & encyclopedias TF8 – T4b or T4a
504 [Unassigned]
505 Serial publications TF8 – T4h
506 Organizations & management PI4 (TF8)
507 Education, research & related topics TF8 – PE
508 Natural history N – TF1
509 Historical, geographic & persons treatment N – TF1 or TF2 ^ N1 or I
510 Mathematics TF9
511 General principles of mathematics TF9 – TT
512 Algebra TF9a
513 Arithmetic TF9b
514 Topology TF9c
515 Analysis TF9d
516 Geometry TF9e
517 [Unassigned]
518 Numerical analysis TF9f
519 Probabilities & applied mathematics TF9g; h
520 Astronomy & allied sciences TF8aa
521 Celestial mechanics →gm Z
522 Techniques, equipment & materials TF8aa – TM
523 Specific celestial bodies & phenomena Zyyy
524 [Unassigned]
525 Earth (Astronomical geography) ZPe
526 Mathematical geography TF8aa ^ TF7g [and ^ TF9 if necessary]
527 Celestial navigation →gagm > Z
528 Ephemerides Z – N1 [Location of celestial objects]
529 Chronology Z – TF1
530 Physics TF8a
531 Classical mechanics; solid mechanics TF8a (→gm N4c)
532 Fluid mechanics; liquid mechanics TF8a (→gm N4b)
533 Gas mechanics TF8a (→gm N4a)
534 Sound & related vibrations N8
535 Light & infrared & ultraviolet phenomena WW2nl ; WW2nu
536 Heat →nh [heating]
537 Electricity & electronics →ne ; TF(→ne)
538 Magnetism →nm [magnetizing]
539 Modern physics TF8a > N2j2021
540 Chemistry & allied sciences TF8c
541 Physical chemistry TF8c (→gx ME; MM)
542 Techniques, equipment & materials TF8c (→gx ME; MM) – TM
543 Analytical chemistry TF8c (MB; W > MM) [It would be a mistake to qualify chemistry by ‘analytical rather than in terms of what is actually studied.]
544 [Unassigned]
545 [Unassigned]
546 Inorganic chemistry TF8c (MEC) [chemistry of non- carbon]
547 Organic chemistry TF8c (MEC) [chemistry of carbon]
548 Crystallography TF8c (MC) [chemistry of crystal structures] [link to crystal as state of nature]
549 Mineralogy TF8c (MTM) [chemistry of metals]
550 Earth sciences TF8g
551 Geology, hydrology & meteorology TF8g; TF8g (NT3); TF8g (NC)
552 Petrology TF8g (R)
553 Economic geology TF8g ^ TF7e
554 Earth sciences of Europe N1be – TF8g
555 Earth sciences of Asia N1ba – TF8g
556 Earth sciences of Africa N1bf – TF8g
557 Earth sciences of North America N1bn – TF8g
558 Earth sciences of South America N1bs – TF8g
559 Earth sciences of other areas N1 [specify] – TF8g
560 Paleontology; paleozoology TF8g (RF)
561 Paleobotany; fossil microorganisms TF8g (FK1,2,4 – RF)
562 Fossil invertebrates Fxxx – RF [Note that DDC switched here from the field to what is studied.]
[Note we will employ Fxxx much in this section. We are in the process of developing a classification of organisms that will not privilege certain organisms over others but will reflects contemporary understandings of genetic inheritance and will be reasonably exhaustive.]
563 Fossil marine & seashore invertebrates Fxxx – RF
564 Fossil mollusks & molluscoids Fxxx – RF
565 Fossil arthropods Fxxx – RF
566 Fossil chordates Fxxx – RF
567 Fossil cold-blooded vertebrates; fossil fishes Fxxx – RF
568 Fossil birds Fxxx – RF
569 Fossil mammals Fxxx – RF
570 Life sciences; biology TF8b
571 Physiology & related subjects TF8b (BS)
572 Biochemistry TF8b ^ TF8c
573 Specific physiological systems in animals Fxxx – BS
574 [Unassigned]
575 Specific parts of & systems in plants Fxxx – BS
576 Genetics & evolution TF8b (BG); →ee
577 Ecology TF8b (F ^ N)
578 Natural history of organisms F – TF1
579 Microorganisms, fungi & algae Fxxx
580 Plants (Botany) Fxxx ; TF8b (Fxxx)
581 Specific topics in natural history F – TF1 plus links
582 Plants noted for characteristics & flowers Fxxx ^ specify
583 Dicotyledons Fxxx
584 Monocotyledons Fxxx
585 Gymnosperms; conifers Fxxx
586 Seedless plants Fxxx [perhaps with link to without seeds]
587 Vascular seedless plants Fxxx
588 Bryophytes Fxxx
589 [Unassigned]
590 Animals (Zoology) FK5 ; TF8b (FK5)
591 Specific topics in natural history Specify
592 Invertebrates Fxxx
593 Marine & seashore invertebrates Fxxx
594 Mollusks & molluscoids Fxxx
595 Arthropods Fxxx
596 Chordates Fxxx
597 Cold-blooded vertebrates; fishes Fxxx
598 Birds Fxxx
599 Mammals Fxxx
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