THE ANNOTATED COLUMBIA CLASSIFICATION.

500-699  Special Note.

The long history of these books was not fully recorded.  They must have been
separated into a sciene collection early on, perhaps 1900-1910.  From that
point, only the minority marked with the L prefix (L500-L699) were part of
General Library.  In about 1970, most of the old 500-699 books were collected
from various storage areas in the science libraries and shelved in the Stack
2 Annex of Butler, combined in one sequence together with L500-L699.  Those
500-699 books kept in science libraries (mostly Science Library) after that
date had to be marked in the catalog as such, since 500-699 without L prefix
now meant General Library.  The shelflist cards for 500-699 also had to be
sorted into General Library and science libraries.  Because of errors, there
is noticeable disagreement between the catalog and the shelflist and the
shelves for 500-699.

500     Science, general
501             Philosophy of science
502             Compends, outlines
503             Dictionaries, encyclopedias
504             Essays
505             Periodicals
506             Societies and transactions
507             Study and teaching
508             Polygraphy, extracts
509             History of science

510     --
511     --
512     --
513     --
514     --
515     --
516     --
517     --
518     --
519     --

510-519: DDC Mathematics.  All are in the Mathematics or Science Libraries.
There were none with L prefix, and none were sent to Butler.

520     Astronomy
521             Theoretical
522             Practical
523             Descriptive
524             Observations. Maps
525             Earth
526             Geodesy
527             Navigation
528             Ephemerides
529             Chronology. Calendars

529.3: Calendars.  529.4,5,6 are Julian, Gregorian and Church calendars
respectively.

530     Physics
531             Mechanics
532             Liquids. Hydrostatics. Hydraulics
533             Gases. Pneumatics. Aviation
534             Sound. Acoustics
535             Light. Optics
536             Heat
537             Electricity
538     --
539             Molecular physics

540     Chemistry
541             Theoretical
542             Practical. Experimental
543             Analysis
544             Qualitative analysis
545             Quantitative analysis
546             Inorganic chemistry
547             Organic chemistry
548             Crystallography
549             Mineralogy

550     Geology
551             Physical and dynamical. Meteorology
552             Lithology. Petrology
553             Economic geology
554             Europe
555             Asia
556             Africa
557             North America
558             South America
559             Australia. Pacific. Polar regions

560     Paleontology
561             Plants
562             Invertebrates
563                     Protozoa
564                     Mollusks
565                     Articulates
566             Vertebrates
567                     Fishes
568                     Reptiles. Birds
569                     Mammals

570     Biology
571     --
572     --
573     --
574     --
575             Evolution
576             Origin of life
577             Properties of living matter
578             Microscopy
579             CollectorsÕ manuals

571-574: DDC Prehistoric Archaeology and Anthropology, moved to 302-303.

580     Botany
581             Physiological and structural. Geographical
582             Spermatophyta [Flowering plants]
583                     Dicotyledonae [Dicots]
584                     Monocotyledonae [Monocots]
585             Gymnospermae [Cycads. Conifers]
586             Cryptogamia [Nonflowering plants]
587             Pteridophyta [Ferns]
588             Bryophyta [Mosses]
589             Thallophyta [Fungus]

590     Zoology
591             Physiological. Geographical
592             Invertebrates
593                     Protozoa
594                     Mollusks
595                     Articulates
596             Vertebrates
597                     Fishes
598                     Reptiles. Birds
599                     Mammals