DDC Third Summary

The third summary contains the thousand sections. The third digit in each three-digit number indicates the section. Thus, 610 is used for general works on medicine and health, 611 for human anatomy, 612 for human physiology, 613 for personal health and safety.

Class NumberSubject
000Computer science, information & general works
001Knowledge
002The book
003Systems
004Data processing & computer science
005Computer programming, programs & data
006Special computer methods
007[Unassigned]
008[Unassigned]
009[Unassigned]
010Bibliography
011Bibliographies
012Bibliographies of individuals
013[Unassigned]
014Of anonymous & pseudonymous works
015Bibliographies of works from specific places
016Bibliographies of works on specific subjects
017General subject catalogs
018Catalogs arranged by author, date, etc.
019Dictionary catalogs
020Library & information sciences
021Library relationships
022Administration of physical plant
023Personnel management
024[Unassigned]
025Library operations
026Libraries for specific subjects
027General libraries
028Reading & use of other information media
029[Unassigned]
030General encyclopedic works
031Encyclopedias in American English
032Encyclopedias in English
033In other Germanic languages
034Encyclopedias in French, Occitan & Catalan
035In Italian, Romanian & related languages
036Encyclopedias in Spanish & Portuguese
037Encyclopedias in Slavic languages
038Encyclopedias in Scandinavian languages
039Encyclopedias in other languages
040[Unassigned]
041[Unassigned]
042[Unassigned]
043[Unassigned]
044[Unassigned]
045[Unassigned]
046[Unassigned]
047[Unassigned]
048[Unassigned]
049[Unassigned]
050General serial publications
051Serials in American English
052Serials in English
053Serials in other Germanic languages
054Serials in French, Occitan & Catalan
055In Italian, Romanian & related languages
056Serials in Spanish & Portuguese
057Serials in Slavic languages
058Serials in Scandinavian languages
059Serials in other languages
060General organizations & museum science
061Organizations in North America
062Organizations in British Isles; in England
063Organizations in central Europe; in Germany
064Organizations in France & Monaco
065Organizations in Italy & adjacent islands
066In Iberian Peninsula & adjacent islands
067Organizations in eastern Europe; in Russia
068Organizations in other geographic areas
069Museum science
070News media, journalism & publishing
071Newspapers in North America
072Newspapers in British Isles; in England
073Newspapers in central Europe; in Germany
074Newspapers in France & Monaco
075Newspapers in Italy & adjacent islands
076In Iberian Peninsula & adjacent islands
077Newspapers in eastern Europe; in Russia
078Newspapers in Scandinavia
079Newspapers in other geographic areas
080General collections
081Collections in American English
082Collections in English
083Collections in other Germanic languages
084Collections in French, Occitan & Catalan
085In Italian, Romanian & related languages
086Collections in Spanish & Portuguese
087Collections in Slavic languages
088Collections in Scandinavian languages
089Collections in other languages
090Manuscripts & rare books
091Manuscripts
092Block books
093Incunabula
094Printed books
095Books notable for bindings
096Books notable for illustrations
097Books notable for ownership or origin
098Prohibited works, forgeries & hoaxes
099Books notable for format
100Philosophy & psychology
101Theory of philosophy
102Miscellany
103Dictionaries & encyclopedias
104[Unassigned]
105Serial publications
106Organizations & management
107Education, research & related topics
108Kinds of persons treatment
109Historical & collected persons treatment
110Metaphysics
111Ontology
112[Unassigned]
113Cosmology
114Space
115Time
116Change
117Structure
118Force & energy
119Number & quantity
120Epistemology, causation & humankind
121Epistemology
122Causation
123Determinism & indeterminism
124Teleology
125[Unassigned]
126The self
127The unconscious & the subconscious
128Humankind
129Origin & destiny of individual souls
130Parapsychology & occultism
131Parapsychological & occult methods
132[Unassigned]
133Specific topics in parapsychology & occultism
134[Unassigned]
135Dreams & mysteries
136[Unassigned]
137Divinatory graphology
138Physiognomy
139Phrenology
140Specific philosophical schools
141Idealism & related systems
142Critical philosophy
143Bergsonism & intuitionism
144Humanism & related systems
145Sensationalism
146Naturalism & related systems
147Pantheism & related systems
148Eclecticism, liberalism & traditionalism
149Other philosophical systems
150Psychology
151[Unassigned]
152Perception, movement, emotions & drives
153Mental processes & intelligence
154Subconscious & altered states
155Differential & developmental psychology
156Comparative psychology
157[Unassigned]
158Applied psychology
159[Unassigned]
160Logic
161Induction
162Deduction
163[Unassigned]
164[Unassigned]
165Fallacies & sources of error
166Syllogisms
167Hypotheses
168Argument & persuasion
169Analogy
170Ethics
171Ethical systems
172Political ethics
173Ethics of family relationships
174Occupational ethics
175Ethics of recreation & leisure
176Ethics of sex & reproduction
177Ethics of social relations
178Ethics of consumption
179Other ethical norms
180Ancient, medieval & eastern philosophy
181Eastern philosophy
182Pre-Socratic Greek philosophies
183Socratic & related philosophies
184Platonic philosophy
185Aristotelian philosophy
186Skeptic & Neoplatonic philosophies
187Epicurean philosophy
188Stoic philosophy
189Medieval western philosophy
190Modern western philosophy
191Philosophy of United States & Canada
192Philosophy of British Isles
193Philosophy of Germany & Austria
194Philosophy of France
195Philosophy of Italy
196Philosophy of Spain & Portugal
197Philosophy of former Soviet Union
198Philosophy of Scandinavia
199Philosophy in other geographic areas
200Religion
201Religious mythology & social theology
202Doctrines
203Public worship & other practices
204Religious experience, life & practice
205Religious ethics
206Leaders & organization
207Missions & religious education
208Sources
209Sects & reform movements
210Philosophy & theory of religion
211Concepts of God
212Existence, knowability & attributes of God
213Creation
214Theodicy
215Science & religion
216[Unassigned]
217[Unassigned]
218Humankind
219[Unassigned]
220Bible
221Old Testament (Tanakh)
222Historical books of Old Testament
223Poetic books of Old Testament
224Prophetic books of Old Testament
225New Testament
226Gospels & Acts
227Epistles
228Revelation (Apocalypse)
229Apocrypha & pseudepigrapha
230Christianity & Christian theology
231God
232Jesus Christ & his family
233Humankind
234Salvation & grace
235Spiritual beings
236Eschatology
237[Unassigned]
238Creeds & catechisms
239Apologetics & polemics
240Christian moral & devotional theology
241Christian ethics
242Devotional literature
243Evangelistic writings for individuals
244[Unassigned]
245[Unassigned]
246Use of art in Christianity
247Church furnishings & articles
248Christian experience, practice & life
249Christian observances in family life
250Christian orders & local church
251Preaching
252Texts of sermons
253Pastoral office & work
254Parish administration
255Religious congregations & orders
256[Unassigned]
257[Unassigned]
258[Unassigned]
259Pastoral care of families & kinds of persons
260Social & ecclesiastical theology
261Social theology
262Ecclesiology
263Days, times & places of observance
264Public worship
265Sacraments, other rites & acts
266Missions
267Associations for religious work
268Religious education
269Spiritual renewal
270History of Christianity & Christian church
271Religious orders in church history
272Persecutions in church history
273Doctrinal controversies & heresies
274History of Christianity in Europe
275History of Christianity in Asia
276History of Christianity in Africa
277History of Christianity in North America
278History of Christianity in South America
279History of Christianity in other areas
280Christian denominations & sects
281Early church & Eastern churches
282Roman Catholic Church
283Anglican churches
284Protestants of Continental origin
285Presbyterian, Reformed & Congregational
286Baptist, Disciples of Christ & Adventist
287Methodist & related churches
288[Unassigned]
289Other denominations & sects
290Other religions
291[Unassigned]
292Greek & Roman religion
293Germanic religion
294Religions of Indic origin
295Zoroastrianism
296Judaism
297Islam, Babism & Bahai Faith
298(Optional number)
299Religions not provided for elsewhere
300Social sciences
301Sociology & anthropology
302Social interaction
303Social processes
304Factors affecting social behavior
305Social groups
306Culture & institutions
307Communities
308[Unassigned]
309[Unassigned]
310Collections of general statistics
311[Unassigned]
312[Unassigned]
313[Unassigned]
314General statistics of Europe
315General statistics of Asia
316General statistics of Africa
317General statistics of North America
318General statistics of South America
319General statistics of other areas
320Political science
321Systems of governments & states
322Relation of state to organized groups
323Civil & political rights
324The political process
325International migration & colonization
326Slavery & emancipation
327International relations
328The legislative process
329[Unassigned]
330Economics
331Labor economics
332Financial economics
333Economics of land & energy
334Cooperatives
335Socialism & related systems
336Public finance
337International economics
338Production
339Macroeconomics & related topics
340Law
341Law of nations
342Constitutional & administrative law
343Military, tax, trade & industrial law
344Labor, social, education & cultural law
345Criminal law
346Private law
347Civil procedure & courts
348Laws, regulations & cases
349Law of specific jurisdictions & areas
350Public administration & military science
351Public administration
352General considerations of public administration
353Specific fields of public administration
354Administration of economy & environment
355Military science
356Infantry forces & warfare
357Mounted forces & warfare
358Air & other specialized forces
359Sea forces & warfare
360Social problems & services; associations
361Social problems & social welfare in general
362Social welfare problems & services
363Other social problems & services
364Criminology
365Penal & related institutions
366Associations
367General clubs
368Insurance
369Miscellaneous kinds of associations
370Education
371Schools & their activities; special education
372Elementary education
373Secondary education
374Adult education
375Curricula
376[Unassigned]
377[Unassigned]
378Higher education
379Public policy issues in education
380Commerce, communications & transportation
381Commerce
382International commerce
383Postal communication
384Communications; telecommunication
385Railroad transportation
386Inland waterway & ferry transportation
387Water, air & space transportation
388Transportation; ground transportation
389Metrology & standardization
390Customs, etiquette & folklore
391Costume & personal appearance
392Customs of life cycle & domestic life
393Death customs
394General customs
395Etiquette (Manners)
396[Unassigned]
397[Unassigned]
398Folklore
399Customs of war & diplomacy
400Language
401Philosophy & theory
402Miscellany
403Dictionaries & encyclopedias
404Special topics
405Serial publications
406Organizations & management
407Education, research & related topics
408Kinds of persons treatment
409Geographic & persons treatment
410Linguistics
411Writing systems
412Etymology
413Dictionaries
414Phonology & phonetics
415Grammar
416[Unassigned]
417Dialectology & historical linguistics
418Standard usage & applied linguistics
419Sign languages
420English & Old English
421English writing system & phonology
422English etymology
423English dictionaries
424[Unassigned]
425English grammar
426[Unassigned]
427English language variations
428Standard English usage
429Old English (Anglo-Saxon)
430Germanic languages; German
431German writing systems & phonology
432German etymology
433German dictionaries
434[Unassigned]
435German grammar
436[Unassigned]
437German language variations
438Standard German usage
439Other Germanic languages
440Romance languages; French
441French writing systems & phonology
442French etymology
443French dictionaries
444[Unassigned]
445French grammar
446[Unassigned]
447French language variations
448Standard French usage
449Occitan & Catalan
450Italian, Romanian & related languages
451Italian writing systems & phonology
452Italian etymology
453Italian dictionaries
454[Unassigned]
455Italian grammar
456[Unassigned]
457Italian language variations
458Standard Italian usage
459Romanian & related languages
460Spanish & Portuguese languages
461Spanish writing systems & phonology
462Spanish etymology
463Spanish dictionaries
464[Unassigned]
465Spanish grammar
466[Unassigned]
467Spanish language variations
468Standard Spanish usage
469Portuguese
470Italic languages; Latin
471Classical Latin writing & phonology
472Classical Latin etymology
473Classical Latin dictionaries
474[Unassigned]
475Classical Latin grammar
476[Unassigned]
477Old, postclassical & Vulgar Latin
478Classical Latin usage
479Other Italic languages
480Hellenic languages; classical Greek
481Classical Greek writing & phonology
482Classical Greek etymology
483Classical Greek dictionaries
484[Unassigned]
485Classical Greek grammar
486[Unassigned]
487Preclassical & postclassical Greek
488Classical Greek usage
489Other Hellenic languages
490Other languages
491East Indo-European & Celtic languages
492Afro-Asiatic languages; Semitic languages
493Non-Semitic Afro-Asiatic languages
494Altaic, Uralic, Hyperborean & Dravidian
495Languages of East & Southeast Asia
496African languages
497North American native languages
498South American native languages
499Austronesian & other languages
500Natural sciences & mathematics
501Philosophy & theory
502Miscellany
503Dictionaries & encyclopedias
504[Unassigned]
505Serial publications
506Organizations & management
507Education, research & related topics
508Natural history
509Historical, geographic & persons treatment
510Mathematics
511General principles of mathematics
512Algebra
513Arithmetic
514Topology
515Analysis
516Geometry
517[Unassigned]
518Numerical analysis
519Probabilities & applied mathematics
520Astronomy & allied sciences
521Celestial mechanics
522Techniques, equipment & materials
523Specific celestial bodies & phenomena
524[Unassigned]
525Earth (Astronomical geography)
526Mathematical geography
527Celestial navigation
528Ephemerides
529Chronology
530Physics
531Classical mechanics; solid mechanics
532Fluid mechanics; liquid mechanics
533Gas mechanics
534Sound & related vibrations
535Light & infrared & ultraviolet phenomena
536Heat
537Electricity & electronics
538Magnetism
539Modern physics
540Chemistry & allied sciences
541Physical chemistry
542Techniques, equipment & materials
543Analytical chemistry
544[Unassigned]
545[Unassigned]
546Inorganic chemistry
547Organic chemistry
548Crystallography
549Mineralogy
550Earth sciences
551Geology, hydrology & meteorology
552Petrology
553Economic geology
554Earth sciences of Europe
555Earth sciences of Asia
556Earth sciences of Africa
557Earth sciences of North America
558Earth sciences of South America
559Earth sciences of other areas
560Paleontology; paleozoology
561Paleobotany; fossil microorganisms
562Fossil invertebrates
563Fossil marine & seashore invertebrates
564Fossil mollusks & molluscoids
565Fossil arthropods
566Fossil chordates
567Fossil cold-blooded vertebrates; fossil fishes
568Fossil birds
569Fossil mammals
570Life sciences; biology
571Physiology & related subjects
572Biochemistry
573Specific physiological systems in animals
574[Unassigned]
575Specific parts of & systems in plants
576Genetics & evolution
577Ecology
578Natural history of organisms
579Microorganisms, fungi & algae
580Plants (Botany)
581Specific topics in natural history
582Plants noted for characteristics & flowers
583Dicotyledons
584Monocotyledons
585Gymnosperms; conifers
586Seedless plants
587Vascular seedless plants
588Bryophytes
589[Unassigned]
590Animals (Zoology)
591Specific topics in natural history
592Invertebrates
593Marine & seashore invertebrates
594Mollusks & molluscoids
595Arthropods
596Chordates
597Cold-blooded vertebrates; fishes
598Birds
599Mammals
600Technology
601Philosophy & theory
602Miscellany
603Dictionaries & encyclopedias
604Special topics
605Serial publications
606Organizations
607Education, research & related topics
608Inventions & patents
609Historical, geographic & persons treatment
610Medicine & health
611Human anatomy, cytology & histology
612Human physiology
613Personal health & safety
614Incidence & prevention of disease
615Pharmacology & therapeutics
616Diseases
617Surgery & related medical specialties
618Gynecology, obstetrics, pediatrics & geriatrics
619[Unassigned]
620Engineering & allied operations
621Applied physics
622Mining & related operations
623Military & nautical engineering
624Civil engineering
625Engineering of railroads & roads
626[Unassigned]
627Hydraulic engineering
628Sanitary & municipal engineering
629Other branches of engineering
630Agriculture & related technologies
631Techniques, equipment & materials
632Plant injuries, diseases & pests
633Field & plantation crops
634Orchards, fruits & forestry
635Garden crops (Horticulture)
636Animal husbandry
637Processing dairy & related products
638Insect culture
639Hunting, fishing & conservation
640Home & family management
641Food & drink
642Meals & table service
643Housing & household equipment
644Household utilities
645Household furnishings
646Sewing, clothing & personal living
647Management of public households
648Housekeeping
649Child rearing & home care of persons
650Management & auxiliary services
651Office services
652Processes of written communication
653Shorthand
654[Unassigned]
655[Unassigned]
656[Unassigned]
657Accounting
658General management
659Advertising & public relations
660Chemical engineering
661Industrial chemicals
662Explosives, fuels & related products
663Beverage technology
664Food technology
665Industrial oils, fats, waxes & gases
666Ceramic & allied technologies
667Cleaning, color & coating technologies
668Technology of other organic products
669Metallurgy
670Manufacturing
671Metalworking & primary metal products
672Iron, steel & other iron alloys
673Nonferrous metals
674Lumber processing, wood products & cork
675Leather & fur processing
676Pulp & paper technology
677Textiles
678Elastomers & elastomer products
679Other products of specific materials
680Manufacture for specific uses
681Precision instruments & other devices
682Small forge work (Blacksmithing)
683Hardware & household appliances
684Furnishings & home workshops
685Leather, fur goods & related products
686Printing & related activities
687Clothing & accessories
688Other final products & packaging
689[Unassigned]
690Buildings
691Building materials
692Auxiliary construction practices
693Specific materials & purposes
694Wood construction & carpentry
695Roof covering
696Utilities
697Heating, ventilating & air-conditioning
698Detail finishing
699[Unassigned]
700The arts; fine & decorative arts
701Philosophy of fine & decorative arts
702Miscellany of fine & decorative arts
703Dictionaries of fine & decorative arts
704Special topics in fine & decorative arts
705Serial publications of fine & decorative arts
706Organizations & management
707Education, research & related topics
708Galleries, museums & private collections
709Historical, geographic & persons treatment
710Civic & landscape art
711Area planning
712Landscape architecture
713Landscape architecture of trafficways
714Water features
715Woody plants
716Herbaceous plants
717Structures in landscape architecture
718Landscape design of cemeteries
719Natural landscapes
720Architecture
721Architectural structure
722Architecture to ca. 300
723Architecture from ca. 300 to 1399
724Architecture from 1400
725Public structures
726Buildings for religious purposes
727Buildings for education & research
728Residential & related buildings
729Design & decoration
730Plastic arts; sculpture
731Processes, forms & subjects of sculpture
732Sculpture to ca. 500
733Greek, Etruscan & Roman sculpture
734Sculpture from ca. 500 to 1399
735Sculpture from 1400
736Carving & carvings
737Numismatics & sigillography
738Ceramic arts
739Art metalwork
740Drawing & decorative arts
741Drawing & drawings
742Perspective
743Drawing & drawings by subject
744[Unassigned]
745Decorative arts
746Textile arts
747Interior decoration
748Glass
749Furniture & accessories
750Painting & paintings
751Techniques, equipment, materials & forms
752Color
753Symbolism, allegory, mythology & legend
754Genre paintings
755Religion
756[Unassigned]
757Human figures
758Other subjects
759Historical, geographic & persons treatment
760Graphic arts; printmaking & prints
761Relief processes (Block printing)
762[Unassigned]
763Lithographic processes
764Chromolithography & serigraphy
765Metal engraving
766Mezzotinting, aquatinting & related processes
767Etching & drypoint
768[Unassigned]
769Prints
770Photography, photographs & computer art
771Techniques, equipment & materials
772Metallic salt processes
773Pigment processes of printing
774Holography
775Digital photography
776Computer art (Digital art)
777[Unassigned]
778Fields & kinds of photography
779Photographs
780Music
781General principles & musical forms
782Vocal music
783Music for single voices; the voice
784Instruments & instrumental ensembles
785Ensembles with one instrument per part
786Keyboard & other instruments
787Stringed instruments
788Wind instruments
789(Optional number)
790Recreational & performing arts
791Public performances
792Stage presentations
793Indoor games & amusements
794Indoor games of skill
795Games of chance
796Athletic & outdoor sports & games
797Aquatic & air sports
798Equestrian sports & animal racing
799Fishing, hunting & shooting
800Literature & rhetoric
801Philosophy & theory
802Miscellany
803Dictionaries & encyclopedias
804[Unassigned]
805Serial publications
806Organizations & management
807Education, research & related topics
808Rhetoric & collections of literature
809History, description & criticism
810American literature in English
811American poetry in English
812American drama in English
813American fiction in English
814American essays in English
815American speeches in English
816American letters in English
817American humor & satire in English
818American miscellaneous writings
819(Optional number)
820English & Old English literatures
821English poetry
822English drama
823English fiction
824English essays
825English speeches
826English letters
827English humor & satire
828English miscellaneous writings
829Old English (Anglo-Saxon)
830Literatures of Germanic languages
831German poetry
832German drama
833German fiction
834German essays
835German speeches
836German letters
837German humor & satire
838German miscellaneous writings
839Other Germanic literatures
840Literatures of Romance languages
841French poetry
842French drama
843French fiction
844French essays
845French speeches
846French letters
847French humor & satire
848French miscellaneous writings
849Occitan & Catalan literatures
850Italian, Romanian & related literatures
851Italian poetry
852Italian drama
853Italian fiction
854Italian essays
855Italian speeches
856Italian letters
857Italian humor & satire
858Italian miscellaneous writings
859Romanian & related literatures
860Spanish & Portuguese literatures
861Spanish poetry
862Spanish drama
863Spanish fiction
864Spanish essays
865Spanish speeches
866Spanish letters
867Spanish humor & satire
868Spanish miscellaneous writings
869Portuguese literature
870Italic literatures; Latin literature
871Latin poetry
872Latin dramatic poetry & drama
873Latin epic poetry & fiction
874Latin lyric poetry
875Latin speeches
876Latin letters
877Latin humor & satire
878Latin miscellaneous writings
879Literatures of other Italic languages
880Hellenic literatures; classical Greek
881Classical Greek poetry
882Classical Greek dramatic poetry & drama
883Classical Greek epic poetry & fiction
884Classical Greek lyric poetry
885Classical Greek speeches
886Classical Greek letters
887Classical Greek humor & satire
888Classical Greek miscellaneous writings
889Modern Greek literature
890Literatures of other languages
891East Indo-European & Celtic literatures
892Afro-Asiatic literatures; Semitic literatures
893Non-Semitic Afro-Asiatic literatures
894Altaic, Uralic, Hyperborean & Dravidian
895Literatures of East & Southeast Asia
896African literatures
897North American native literatures
898South American native literatures
899Austronesian & other literatures
900History & geography
901Philosophy & theory
902Miscellany
903Dictionaries & encyclopedias
904Collected accounts of events
905Serial publications
906Organizations & management
907Education, research & related topics
908Kinds of persons treatment
909World history
910Geography & travel
911Historical geography
912Atlases, maps, charts & plans
913Geography of & travel in ancient world
914Geography of & travel in Europe
915Geography of & travel in Asia
916Geography of & travel in Africa
917Geography of & travel in North America
918Geography of & travel in South America
919Geography of & travel in other areas
920Biography, genealogy & insignia
921(Optional number)
922(Optional number)
923(Optional number)
924(Optional number)
925(Optional number)
926(Optional number)
927(Optional number)
928(Optional number)
929Genealogy, names & insignia
930History of ancient world to ca. 499
931China to 420
932Egypt to 640
933Palestine to 70
934India to 647
935Mesopotamia & Iranian Plateau to 637
936Europe north & west of Italy to ca. 499
937Italy & adjacent territories to 476
938Greece to 323
939Other parts of ancient world to ca. 640
940History of Europe
941British Isles
942England & Wales
943Central Europe; Germany
944France & Monaco
945Italian Peninsula & adjacent islands
946Iberian Peninsula & adjacent islands
947Eastern Europe; Russia
948Scandinavia
949Other parts of Europe
950History of Asia; Far East
951China & adjacent areas
952Japan
953Arabian Peninsula & adjacent areas
954South Asia; India
955Iran
956Middle East (Near East)
957Siberia (Asiatic Russia)
958Central Asia
959Southeast Asia
960History of Africa
961Tunisia & Libya
962Egypt & Sudan
963Ethiopia & Eritrea
964Northwest African coast & offshore islands
965Algeria
966West Africa & offshore islands
967Central Africa & offshore islands
968Southern Africa; Republic of South Africa
969South Indian Ocean islands
970History of North America
971Canada
972Middle America; Mexico
973United States
974Northeastern United States
975Southeastern United States
976South central United States
977North central United States
978Western United States
979Great Basin & Pacific Slope region
980History of South America
981Brazil
982Argentina
983Chile
984Bolivia
985Peru
986Colombia & Ecuador
987Venezuela
988Guiana
989Paraguay & Uruguay
990History of other areas
991[Unassigned]
992[Unassigned]
993New Zealand
994Australia
995Melanesia; New Guinea
996Other parts of Pacific; Polynesia
997Atlantic Ocean islands
998Arctic islands & Antarctica
999Extraterrestrial worlds

Source: https://www.oclc.org/content/dam/oclc/dewey/resources/summaries/deweysummaries.pdf