500-599 Mathematics, Science

502 Miscellany 503 Dictionaries, 510 Mathematics, 
520 Astronomy, 529 Chronology, 530 Physics,  
540 Chemistry, 549 Mineralogy, 550 Earth Sciences,  
551 Geology/Hydrology/Meteorology,  560 Paleontology,  
570 Life Sciences, 575 Evolution & Genetics,  
580 Botanical Sciences, 591 Zoology, 
592 Invertebrates, 593 Protozoa/Echinodermata/Related Phyla
594 Mollusca & Molluscoidea, 595 Entomology,  
596 Vertebrates,  597 Cold Blooded Vertebrates/Fishes,  
598 Birds, 599 Mammals

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502 Miscellany

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503 Dictionaries

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510 Mathematics

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520 Astronomy

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529 Chronology

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530 Physics

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540 Chemistry

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549 Mineralogy

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550 Earth Sciences

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551 Geology, Hydrology, & Meteorology

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560 Paleontology

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570 Life Sciences

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575 Evolution & Genetics

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580 Botanical Sciences

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591 Zoology

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592 Invertebrates

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593 Protozoa, Echinodermata, Related Phyla

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594 Mollusca & Molluscoidea

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595 Entomology

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596 Vertebrates

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597 Cold-blooded Vertebrates/Fishes

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598 Birds

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599 Mammals

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