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Remember that each book may have only a single call number,
even if it deals with a number of subjects.
 
 Click here for an even more detailed explanation.

A | B | C | D | E | F | G | H | J | K | L | M | N | P | Q | R | S | T  

A GENERAL WORKS

    AC Collections, Series, Collected works
      1-195 Collections of monographs, essays, etc.For collections published under the auspices of learned bodies (institutions or societies), see AS

      801-895 Inaugural and program dissertations

      901-995 Pamphlet collections

      999 Scrapbooks

    AE General Encyclopedias

    AG Dictionaries and other general reference works

      1-90 Dictionaries, Minor encyclopedias Including popular and juvenile encyclopedias

      103-190 General works, pocketbooks, receipts, etc.

      195-196 Questions and answers

      240-243 Wonders, Curiosities

      250 Pictorial works

      305-313 Notes and queries

      500-551 Clipping bureaus. Information bureaus

AI General Indexes
      21 Indexes to individual newspapers
    AM Museums (General). Collectors and collecting (General)
      10-101 Museography. Individual museums

      111-157 Museology. Museum methods, technique, etc.

      200-501 Collectors and collecting. Private collections

    AN Newspapers For history and description of individual newspapers, see PN4891-5650

    AP Periodicals (General)

      101-115 Humorous periodicals

      200-230 Juvenile periodicals

    AS Academies and learned societies (General)
      2.5-4 International associations, congresses, conferences, etc.
    AY Yearbooks. Almanacs. Directories For general works on theory, methods of compilations, etc.
      30-1730 Almanacs

      2001 Directories

    AZ History of scholarship and learning. The humanities
      999 Popular errors, delusions and superstitions
B PHILOSOPHY, PSYCHOLOGY AND RELIGION
    Philosophy (General) For general philosophical treatises, see BD10-41
      69-5739 History and systems Including individual philosophers and schools of philosophy
    BC Logic

    BD Speculative philosophy

      10-41 General philosophical works

      95-131 Metaphysics

      143-236 Epistemology. Theory of knowledge

      300-450 Ontology Including the soul, immortality

      493-708 Cosmology Including teleology, space and time, atomism

    BF Psychology. For ethnic psychology, see GN. For social psychology, see HM
      173-175 Psychoanalysis

      180-210 Experimental psychology

      231-299 Sensation

      311-499 Cognition. Perception. Intelligence

      511-593 Emotion

      608-635 Will

      636-637 Applied psychology

      660-687 Comparative psychology

      683 Motivation

      698 Personality

      699-711 Genetic psychology For the psychology of mental development or evolution

      712-724 Developmental psychology

      721-723 Child psychology

      795-839 Temperament. Character

      840-861 Physiognomy

      866-885 Phrenology

      889-905 Graphology

      908-940 The hand. Palmistry

      1001-1389 Parapsychology Including hallucinations, sleep, dreams, hypnotism, telepathy, spiritualism, mediumship, clairvoyance, telekinesis

      1405-1999 Occult sciences Including ghosts, demonology, witchcraft, astrology, oracles, fortunetelling

    BH Aesthetics

    BJ Ethics

      1188-1500 Religous ethics

      1545-1691 Practical and applied ethics. Conduct of life

      1801-2195 Social usages. Etiquette

    BL Religions. Mythology. Rationalism
      175-290 Natural theology

      300-325 Mythology (General)

      425-490 Religious doctrines (General)

      500-547 Eschatology

      550-619 Worship. Cultus

      660-2670 History and principles of particular religions Including Brahmanism, Hinduism, Jainism

      2700-2790 Rationalism Including agnosticism, free thought

    BM Judaism
      487-488 Dead Sea scrolls

      495-532 Sources of Jewish religion. Rabbinical literature

      600-645 Dogmatic Judaism

      650-747 Practical Judaism

      900-990 Samaritans

    BP Islam. Bahaism. theosophy, etc.
      100-137 Sacred books

      166 Theology (Kalam)

      174-190 The practice of Islam

      191-223 Branches, sects and modifications

      300-395 Bahaism

      500-585 Theosophy

      595-597 Anthroposophy

    BQ Buddhism
      1001-1045 Buddhist literature

      1100-3340 Tripitaka (Canonical literature)

      4061-4570 Doctrinal and systematic Buddhism

      7001-9800 Modifications, schools, etc.

    BR Christianity (General)
      45-85 Collections Including early Christian literature

      140-1500 Church history

      1690-1725 Biography

    BS The Bible and exegesis

    BT Doctrinal theology, Apologetics

    BV Practical theology

      5-525 Worship (Public and private) Including the churchyear, Christian symbols, liturgy, prayer, hymnology

      590-1650 Ecclesiastical theology Including the Church, church and state, church management, ministry, sacraments, religious societies, religious education

      2000-3705 Missions

      3750-3799 Evangelism. Revivals

      4000-4470 Pastoral theology

      4485-5099 Practical religion. The Christian life

    BX Denominations and sects
      1-9 Church unit. Ecumenical movement

      100-189 Eastern churches. Oriental churches

      200-754 Orthodox Eastern Church

      800-4795 Roman Catholic Church

      4800-9999 Protestantism

C HISTORY OF CIVILIZATION, ARCHAEOLOGY, AND BIOGRAPHY
    Auxiliary sciences of history (General)

    CB History of civilization For individual countries, see D-F

    CC Archaeology (General) For individual countries, see D-F, GN

      200-250 Bells. Campanology

      300-350 Crosses

      900-950 Tombs (General)

    CD Diplomatics. Archives. Seals
      921-4279 Archives Including works on the science of archives, guides to depositories, inventories of archival material
    CE Technical chronology. Calendar For historical chronology, see D-F

    CJ Numismatics

      4801-5450 Tokens

      5501-6661 Medals and medallions

    CN Inscriptions. Epigraphy

    CR Heraldry

      191-1020 Public and official heraldry

      1101-1131 Ecclesiastical and sacred heraldry

      1179-3395 Family heraldry

      3499-4420 Titles of honor, rank, precedence, etc.

      4501-6305 Chivalry and knighthood Including tournaments, duels, orders, decoration

    CS Genealogy
      2300-3090 Personal and family names
    CT Biography For biography associated with a particular subject, see that subject
      93-206 Collections (General. Universal)

      210-3150 National biography

      3200-3910 Biography of women

DWORLD HISTORY (EXCEPT NORTH, CENTRAL, AND SOUTH AMERICA) Including geography and description of individual regions and countries
    History (General)
      51-95 Ancient history

      111-203 Medieval history

      204-849 Modern history

      501-680 World War I

      731-838 World War II

      901-1075 Europe (General)

    DA Great Britain
      20-690 England

      700-745 Wales

      750-890 Scotland

      900-995 Ireland

    DB Austria. Czechoslovakia. Hungary

    DC France

    DD Germany

    DE The Mediterranean region. Greco-Roman world

    DF Greece

    DG Italy

    DH-DJ Netherlands. Belgium. Luxemburg

    DJK Eastern Europe

    DK Russia. Poland. Finland

    DL Northern Europe. Scandinavia

    DP Spain. Portugal

    DQ Switzerland

    DR Eastern Europe. Balkan Peninsula. Turkey

    DS Asia

    DT Africa

    DU Oceania (South Seas)

      80-398 Australia

      400-430 New Zealand

    DX Gypsies
E HISTORY OF THE UNITED STATES
    11-29 America (General)

    31-46 North America

    51-99 Indians. Indians of North America

    101-135 Discovery of America and early explorations of United States (General)

    184-185 Elements in the population

    185 Negroes

    186-199 Colonial history

    201-298 Revolution

    301-453 Revolution to the Civil War

    351-364 War of 1812

    401-415 War with Mexico

    441-453 Slavery

    456-655 Civil War

    482-489 Confederate States of America

    660-738 Late nineteenth century

    714-735 Spanish-American War

    740- Twentieth Century

F HISTORY OF THE US (LOCAL), CANADA, AND CENTRAL AND SOUTH AMERICA
    1-975 United States local history

    1001-1140 British America. Canada

    1201-1392 Mexico

    1401-1419 Latin America (General)

    1421-1577 Central America

    1601-2183 West Indies

    2201-2239 South America (General)

    2251-2299 Columbia

    2301-2349 Venezuela

    2351-2471 Guianas. Guyana. Surinam. French Guiana

    2501-2659 Brazil

    2661-2699 Paraguay

    2701-2799 Uruguay

    2801-3021 Argentina

    3051-3285 Chile

    3301-3359 Bolivia

    3401-33619 Peru

    3701-3799 Ecuador

G GEOGRAPHY, ANTHROPOLOGY AND RECREATION
    Geography (General) For geography and description of individual countries, see D-F
      149-570 Voyages and travels (General) Including discoveries, explorations, shipwrecks, seafaring life. For travel in special continents and countries, see D-F

      575-890 Polar regions Including exploration, history, description

      905-910 Tropics (General)

      912-922 Northern and Southern Hemispheres

      1000.3-3122 Atlases

      3160-9980 Maps. Globes

    GA Mathematical geography. Cartography Including topographical surveys of individual countries

    GB Physical geography Including arrangement by country

      400-649 Geomorphology

      651-2998 Water. Hydrology Including ground water, rivers, lakes, glaciers

      5000-5030 Natural disasters

    GC Oceanography
      100-181 Seawater

      200-376 Dynamics of the sea

      377-399 Marine sediments

      1000-1023 Marine resources. Applied oceanography

      1080-1581 Marine pollution

    GF Human ecology. Anthropogeography

    GN Anthropology

      49-296 Physical anthropology. Somatology

      301-673 Ethnology. Social and cultural anthropology For descriptions of individual ethnic groups, see D-F

      700-875 Prehistoric archaeology Including arrangement by country

    GR Folklore
      72-79 Folk literature (General)

      430-940 Folklore relating to special subjects

    GT Manners and customs (General) For works limited to special countries, see D-F
      170-474 Houses. Dwellings

      500-2370 Costume. Dress. Fashion.

      2400-5090 Custom relative to private and public life Including love, marriage, eating, smoking, treatment of the dead, town life, customs of chivalry, festivals and holidays

      5320-6720 Customs relative to special classes, by birth, occupation, etc.

    GV Recreation
      191.2-200.5 Outdoor life. Outdoor recreation Including camping for individuals or small groups, organized camps, trailer camping, hiking, mountaineering

      201-555 Physical training

      561-1198.995 Sports

      1199-1570 Games and amusements

      1580-1799 Dancing

      1800-1860 Circuses, spectacles, etc. Including rodeos, waxworks, amusement parks, etc.

H SOCIAL SCIENCES
    Social sciences (General)

    HA Statistics Including collections of general and census statistics of special countries. For mathematical statistics, see QA

    Economics

    HB Economic theory Including value, price, wealth, capital, interest, profit, consumption

      848-875 Population

      879-3700 Demography. Vital statistics

      3711-3840 Crises. Business cycles

    HC Economic history and conditions. National production

    HD Land. Agriculture. Industry

      1-91 Production. Industrial management

      101-1395 Land

      Including public lands, real estate, land tenure

      1401-2210 Agricultural economics Including agricultural laborers

      2321-9999 Industry

      2709-2930 Corporations. Trusts. Cartels

      2951-3570 Industrial cooperation

      3611-4730 The state and industrial organization Including state industries, public works, municipal industries

      4801-8942 Labor Including wages, strikes, unemployment, labor unions, industrial relations, social security, professions, state labor. For civil service, see J

      9000-9999 Special industries and trades

    HE Transportation and communication
      331-380 Traffic engineering. Roads and highways

      381-971 Water transportation

      1001-5600 Rail transportation

      5601-5720 Automotive transportation

      6000-7500 Postal service. Stamp collecting

      7601-8688 Telecommunication. Telegraph

      8689-8700 Radio and television

      8701-9715 Telephone

      9761-9900 Air transportation

    HF Commerce
      294-343 Boards of trade. Chambers of commerce

      1701-2701 Tariff policy

      5001-5780 Business. Business administration

      5549 Personnel management

      5601-5689 Accounting

      5801-6191 Advertising

    HG Finance
      201-1496 Money

      1501-3542 Banking

      3701-3781 Credit

      3810-4000 Foreign exchange

      4001-4495 Corporation finance

      4501-6270 Stocks, investment, speculation

      8111-9970 Insurance

    HJ Public finance
      2005-2199 Income and expenditure. The budget

      2240-5957 Revenue. Taxation

      6041-7384 Customs. Tariff

      8003-8963 Public credit. Debts. Loans

      9000-9698 Local finance

      9701-9995 Public accounting

    Sociology

    HM Sociology (General and theoretical)

      251-291 Social psychology
    HN Social history. Social problems. Social reform
      30-39 The church and social problems
    Social groups

    HQ The family. Marriage. Woman

      12-449 Sexual life

      450-471 Erotica

      503-1064 The family. Marriage Including child study, eugenics, desertion, adultery, divorce, polygamy, the aged

      1101-2030 Woman. Feminism. Women's clubs

    HS Societies: Secret, benevolent, etc. Clubs Including Freemasons, religious societies, ethnic societies, political societies, Boy Scouts

    HT Communities. Classes. Races

      101-384 Urban sociology. Cities and towns Including the social and economic aspects of city planning and urban renewal. For architectural aspects, see NA9000-9425

      390-395 Regional planning

      401-485 Rural sociology

      601-1445 Social classes Including middle class, serfdom, slavery

      1501-1595 Races For works on the race as a social group and race relations in general

    HV Social pathology. Social and public welfare. Criminology
      40-696 Charities

      697-4959 Protection, assistance, and relief Arranged by special classes of persons, as determined by age, defects, occupation, race, economic status, etc. Including protection of animals

      5001-5720 Alcoholism. Intemperance. Temperance reform

      5725-5770 Tobacco habit

      5800-5840 Drug habits. Drug abuse

      6001-9920 Criminology

      6251-7220 Crimes and offenses

      7231-9920 Penology Including police, prisons, punishment and reform, juvenile delinquency

    HX Socialism. Communism. Anarchism
      806-811 Utopias
J POLITICAL SCIENCE
    Official documents General serial documents only. For documents limited to special subjects, see the subject in B-Z
      1-9 Official gazettes. United States documents. For congressional hearings, reports, etc., see KF

      80-85 Presidents' messages and other executive documents

      86-87 State document

      100-981 Other counties For documents issued by local governments, see JS

    JA Collections and general works

    JC Political theory. Theory of the state

      311-323 Nationalism. Minorities. Geopolitics

      325-341 Nature, entity, concept of the state

      345-347 Symbolism, emblems of the state: Arms, flag, seal, etc.

      348-497 Forms of the state Including imperilism, the world state, monarchy, aristocracy, democracy, fascism, dictatorships

      501-628 Purpose, functions, and relations of the state

      571-628 The state and the individual. Individual rights. Liberty

    JF Constitutional history and administration General works. Comparative works
      201-723 Organs and function of government Including executive branch, cabinet and ministerial government, legislative bodies

      800-1191 Political rights and guaranties Including citizenship, suffrage, electoral systems, representation, the ballot

      1321-2112 Government. Administration

      1411-1674 Civil Service

      2011-2112 Political parties

    Special countries

    JK United States

    JL British America. Latin America

    JN Europe

    JQ Asia. Africa. Australia. Oceania

    JS Local Government

      3-27 Serial documents (General)

      141-231 Municipal government

      241-285 Local government other than municipal

    JV Colonies and colonization. Emigration and immigration

    JX International Law. International relations

      63-1195 Collections. Documents. Cases

      101-115 Diplomatic relations (Universal collections)

      120-191 Treaties (Universal collections)

      1305-1598 International relations. Foreign relations For international questions treated as sources of or contributions to the theory of international law. For histories of events, diplomatic histories, etc., see D-F

      1625-1896 Diplomacy. The diplomatic service

      1901-1995 International arbitration. World peace. International organization Including peace movements, League of Nations, United Nations, arbitration treaties, international courts

      2001-5810 International law (Treatises and monographs)

K LAW Completed: Subclasses K, KD, KE, and KF.
    Law (General)
      237-487 Jurisprudence. Philosophy and theory of law

      540-5570 Comparative law. International uniform law

      7051-7720 Conflict of laws

    Law of the United Kingdom and Ireland

    KD Law of England and Wales

      8850-9312 Local laws of England

      9320-9355 Local laws of Wales

      9400-9500 Law of Wales

    KDC Law of Scotland

    KDE Law of Northern Ireland

    KDG Law of Isle of Man and the Channel Islands

    KDK Law of Ireland (Eire)

    Law of Canada

    KE Federal law. Common and collective provincial law

    KEA-KEY Law of individual provinces and teritories

    KEO e.g. Ontario

    KEQ Quebec

    KEZ Law of individual cities, A-Z

    Law of the United States

    KF Federal law. Common and collective state law

    KFA-KFW Law of individual states

    KFA 0-599 e.g. Alabama

      1200-1799 Alaska
    KFW 0-599 Washington

    KFX Law of individual cities, A-Z

    KFZ Law of individual territories

L EDUCATION
    Education (General) For periodicals, congresses, directories, etc.

    LA History of education

    LB Theory and practice of education

      51-885 Systems of individual educators and writers

      1025-1050 Teaching (Principles and practice)

      Including programmed instruction, remedial teaching, nongraded schools, audiovisual education, methods of study, reading (General)

      1051-1091 Educational psychology

      1101-1139 Child study.Psychical development

      1140 Preschool education

      1141-1489 Kindergarten

      1501-1547 Primary education

      1555-1602 Elementary or public school education

      1603-1695 Secondary education. High schools

      1705-2286 Education and training of teachers

      2300-2430 Higher education

      2801-3095 School administration and organization

      3201-3325 School architecture and equipment

      3401-3499 School hygiene

      3525-3640 Special days. School life. Student customs

    LC Special aspects of education
      8-63 Forms of education Including self, home, and private school education

      65-245 Social aspects of education Including education and the state, religious instruction in public schools, compulsory education, illiteracy, educational sociology, community and the school, endowments

      251-951 Moral and religious education. Education under church control

      1001-1091 Types of education Including humanistic, vocational, and professional

      education

      1390-5158 Education of special classes of persons Including women, Blacks, gifted and handicapped children, orphans, middle class

      5201-6691 Adult education. Education extension. Individual institutions: universities, colleges, and schools

    LD United States

    LE America, except United States

    LF Europe

    LG Asia. Africa. Oceania

    LH College and school magazines and papers

    LJ Student fraternities and societies, United States For other countries, see LA, LE-LG

    LT Textbooks For textbooks covering several subjects. For textbooks on particular subjects, see those subjects in B-Z

M MUSIC
    5-1459 Instrumental music

    6-175 One instrument without accompaniment

    177-986 Two or more solo instruments Including chamber music not orchestral

    1000-1356 Orchestral music

    1495-2199 Vocal music

    1497-1998 Secular vocal music

    1500-1527 Dramatic music

    1530-1610 Choral music, part songs, etc.

    1611-1626 Songs for one voice

    1627-1985 Songs (Part and solo)

    1627-1853 National music Including primitive, folk, traditional, patriotic, political, and typical music, with or without accompaniment, and with or without words

    1999-2199 Sacred vocal music

    2000-2017 Oratorios, masses, services, etc.

    2018-2101 Cantatas, anthems, part songs

    2102-2114 Songs for one voice

    2115-2146 Hymn, psalm, and choral books

    2147-2188 Liturgy and ritual

    2198-2199 Temperance, revival, rescue, and gospel songs

    ML Literature of music

      48-54 Librettos (Texts for music)

      111-158 Bibliography

      155.3-158 Phonorecords

      159-3795 History and criticism Including biographies of individual composers

      460-1354 Instruments and instrumental music

      1100-1354 Chamber music (Sacred and seclar)

      1400-3275 Vocal music

      1500-1554 Choral music (Sacred and secular)

      1600-2862 Secular vocal music Including dramatic music, cantatas, songs (Part and solo)

      2900-3197 Sacred vocal music Including church music, oratorios, cantatas

      3400-3465 Dance Music

      3545-3776 National music

      3800-3923 Philosophy and physics of music Including physiology, psychology, color and music, aesthetics, ethics, therapeutics

      3930 Juvenile literature

    MT Music instruction and study
      40-67 Composition Including rhythm, scales, melody, harmony, modulation, counterpoint

      68 Improvision

      70-86 Orchestra and orchestration, conducting, etc.

      90-145 Analytical guides, etc. (Hermeneutics) How to listen to and how to understand special musical compositions. For historical, biographical, critical, or aesthetic works, see MS410 under the composer

      170-810 Instrumental technics

      820-949 Singing and voice culture

      955-960 Production of operas. Music in theaters

N FINE ARTS For the arts in general, see NX
    N Visual arts (General) For photography, see TR
      400-4040 Art museums, galleries, etc.

      Arranged by country, subarrangement by city

      4390-5098 Exhibitions

      5198-5299 Private collections and collectors

      5300-7418 History of art

      7430-7433 Technique, composition, style, etc.

      7475-7483 Art criticism

      7575-7624 Portraits

      7790-8199 Religious art

      8555-8585 Examination and conservation of works of art

      8600-8675 Economics of art

      8700-9165 Art and the state. Public art

    NA Architecture
      190-1613 History. Historical monuments

      2699-2790 Architectural design and drawing

      2835-4050 Architectural details, motives, decoration, etc.

      4100-8480 Special classes of buildings

      9000-9425 Aesthetics of cities. City planning and beautification

    NB Sculpture

    NC Drawing. Design. Illustration

      997-1003 Commercial art. Advertising art

      1300-1766 Caricature. Pictorial humor and satire

      1800-1855 Posters

    ND Painting
      1290-1460 Special subjects Including human figure, landscapes, animals, still life, flowers

      1700-2495 Watercolor painting

      2550-2888 Mural painting

      2890-3416 Illuminating of manuscripts and books

    NE Print Media
      1-978 Printmaking and engraving

      1000-1352 Wood engraving. Woodcuts. Xylography

      1400-1879 Metal engraving. Copper, steel, etc. Including color prints

      1940-2230 Etching and aquatint

      2236-2239 Serigraphy

      2250-2570 Lithography

      2800-2890 Printing of engravings

    NK Decorative arts. Applied arts. Decoration and ornament Including antiques in general
      1135-1149 Arts and crafts movement

      1700-3505 Interior decoration. House decoration

      3600-9955 Other arts and art industries

      3700-4695 Ceramics. Pottery. Porcelain

      4700-4890 Costume and its accessories

      4997-6050 Enamel. Glass. Glyptic arts Including gems, jade, ivory, bone

      6400-8459 Metalwork Including armor, jewelry, plate, brasses, pewter

      8800-9505 Textile arts and art needlework

      9600-9955 Woodwork Including carvings, fretwork, inlaying

    NX Arts in general Including works dealing with two or more of the fine arts media, i.e. literature, performing arts, and the visual arts. For works on any one of these subjects, see the subject, i.e. GV, M, N, P, TR
      700-750 Patronage of the arts

      798-820 Special arts centers

P LANGUAGE AND LITERATURE
    P Philology and linguistics (General)
      87-96 Communication. Mass media

      101-409 Language (General)

      101-115 Philosophy, psychology, origin, etc. of language

      121-141 Science of language. Linguistics

      201-297 Comparative grammar Including origin of the alphabet, phonetics, morphology, parts of speech, syntax

      301 Style. Composition. Rhetoric

      306-310 Translating and interpreting

      311 Prosody. Metrics. Rhythmics

      327-365 Lexicography

      375-381 Linguistic geography

      501-769 Indo-European philology

      901-1081 Extinct (Ancient or Medieval) Asian and European languages

    PA Classical languages and literature
      227-1179 Greek philology and language

      2001-2915 Latin philology and language

      Greek literature

      3051-4500 Ancient (Classic) to ca. 600 A.D.

      5000-5660 Byzantine and modern

      Modern European language

    PB 1-431 General works
      Celtic languages and literature

      1201-1449 Irish

      1501-1709 Gaelic, Scottish Gaelic

      1801-1888 Manx

      2001-3029 Brythonic group Including Welsh, Cornish, Breton, Gallic

    PC Romance languages
      601-872 Romanian language and literature

      1001-1977 Italian

      2001-3761 French. Provencal

      3801-3976 Catalan language and literature

      4001-4977 Spanish

      5001-5498 Portuguese

    PD Germanic languages
      1001-1350 Old Germanic dialects Including Gothic, Vandal, Burgundian, Langobardian

      1501-5929 Scandinavian. North Germanic

      2201-2392 Old Norse. Old Icelandic and Norwegian

      2401-2489 Icelandic

      2571-2999 Norwegian

      3001-3929 Danish

      5001-5929 Swedish

    PE English

    PF West Germanic

      1-979 Dutch

      1001-1184 Flemish

      1401-1558 Friesian language and literature

      3001-5999 German

    PG Slavic. Baltic, Albanian languages and literatures
      1-7925 Slavic

      615-716 Church Slavic

      801-1164 Bulgarian. Macedonian

      1201-1696 Serbo-Croatian

      1801-1962 Slovenian

      2001-3987 Russian. White Russian. Ukrainian

      4001-5546 Czech. Slovak

      5631-7446 Polish. Sorbian

      8001-9146 Baltic

      8501-8772 Lithuanian

      8801-9146 Latvian

      9501-9678 Albanian

    PH Finno-Ugrian, Basque languages and literatures
      101-1109 Finnish

      101-405 Finnish (Proper)

      601-671 Estonian

      701-735 Lappish

      801-836 Cheremissian

      1201-3445 Ugrian. Hungarian

      5001-5490 Basque

      Oriental languages and literature

    PJ 1-995 General works
      1001-2199 Egyptian. Coptic

      2301-2551 Hamitic

      2353-2367 Libyan group

      2369-2399 Berber

      2401-2539 Cushitic

      3001-9293 Semitic

      3101-4083 Assyrian. Sumerian

      4501-5192 Hebrew

      5201-5329 Aramaic

      5403-5809 Syriac

      6001-8517 Arabic

      8991-9293 Ethiopian

    PK 1-6996 Indo-Iranian Including Vedic, Sanskrit, Pali, Assamese, Bengali, Hindi, Urdu, Hindustani, Sinhalese, Persian
      8001-8958 Armenian

      9001-9201 Caucasian. Georgian

    PL Languages and literatures of Eastern Asia, Africa, Oceania
      501-889 Japanese language and literature

      901-998 Korean language and literature

      1001-3207 Chinese language and literature

      5001-7511 Oceanic languages and literatures

      8000-8844 African languages and literatures

    PM 101-7356 American Indian languages
      8001-9021 Artificial languages
    Literature

    PN Literary history and collections (General)

      80-99 Criticism

      101-245 Authorship

      441-1009 Literary history Including folk literature, fables, prose romances

      1010-1551 Poetry

      1560-1590 The performing arts. Show business

      1600-3299 The drama

      1660-1692 Dramatic composition

      1865-1999 Special types of drama Including tragedy, comedy, vaudeville, puppet plays, pantomimes, ballet, radio and television broadcast, motion pictures

      2000-3299 Dramatic representation. The theater Including management, the stage and accessories, amateur theatricals, tableaux and pageants

      3311-3503 Prose. Prose fiction

      4001-4355 Oratory. Elocution, recitations, etc.

      4400 Letters

      4500 Essays

      4699-5650 Journalism. The periodical press, etc.

      6011-6790 Collections of general literature

      6080-6095 Quotations

      6099-6110 Poetry

      6110.5-6120 Drama

      6121-6129 Orations

      6130-6140 Letters

      6141-6145 Essays

      6147-6231 Wit and humor. Satire

      6249-6790 Miscellaneous Including anecdotes, aphorisms, maxims, mottoes, toasts, riddles, proverbs, comic books, comic strips

    PQ Romance literatures

    PR English literature

    PS American literature

    PT Germanic literatures

    PZ Fiction and juvenile belles lettres

      1-4 Fiction in English Including English translation of foreign authors

      5-90 Juvenile belles lettres In English and foreign languages

Q SCIENCE
    Q Science (General)
      300-385 Cybernetics. Information theory
    QA Mathematics
      9-10 Mathematical logic

      76 Computer science. Electronic data processing

      101-141 Elementary mathematics. Arithmetic

      150-271 Algebra Including machine theory, game theory

      273-274 Probabilities

      276-280 Mathematical statistics

      297-299 Numberical analysis

      299.8-433 Analysis Including analytical methods connected with physical problems

      440-699 Geometry

      611-614 Topology

      801-939 Analytic mechanics For non-theoretical mechanics, see QC120+

    QB Astronomy
      140-237 Practical and spherical astronomy

      275-343 Geodesy

      349-421 Theoretical astronomy and celestrial mechanics Including perturbations, tides

      460-465 Astrophysics

      468-479 Non-optical methods of astronomy

      500-991 Descriptive astronomy Including stellar spectroscopy, cosmogony

    QC Physics
      81-114 Weights and measures

      120-168 Descriptive and experimental mechanics

      170-197 Atomic physics. Constitution and properties of matter Including quantum theory, solid-state physics

      220-246 Acoustics. Sound

      251-338 Heat

      350-467 Optics. Light Including spectroscopy

      474-496 Radiation physics (General)

      501-766 Electricity and magnetism

      770-798 Nuclear and particle physics. Atomic energy. Radioactivity

      801-809 Geophysics. Cosmic physics

      811-849 Geomagnetism

      851-999 Meteorology. Climatology

    QD Chemistry
      23.3-26 Alchemy

      71-142 Analytical chemistry

      146-197 Inorganic chemistry

      241-441 Organic chemistry

      450-731 Physical and theoretical chemistry Including quantum chemistry, stereochemistry, chemical reations, surface chemistry, thermochemistry, solution chemistry, electrochemistry, radiochemistry. radiation chemistry, photochemistry

      901-999 Crystallography

    QE Geology
      351-399 Mineralogy

      420-499 Petrology

      500-625 Dynamic and structural geology

      640-699 Stratigraphic geology

      701-996 Paleontology Including paleozoology and paleobotany

    QH Natural history (General)
      75-77 Nature conservation. Landscape protection

      201-278 Microscopy

      301-705 General biology

      426-470 Genetics

      471-489 Reproduction

      501-531 Life

      540-549 Ecology Including general and animal ecology. For human ecology, see GF; for plant ecology, see QK

      573-671 Cytology

    QK Botany
      641-673 Plant anatomy

      710-899 Plant physiology

      901-938 Plant ecology

    QL Zoology
      750-795 Animal behavior and psychology

      801-950 Anatomy

      951-991 Embryology

    QM Human anatomy
      601-691 Human embryology
    QP Physiology
      351-495 Neurophysiology. Neuropsychology

      501-801- Animal biochemistry

      901-981 Experimental pharmacology

    QR Microbiology
      75-99 Bacteria

      180-189 Immunology

      355-484 Virology

R MEDICINE
    R Medicine (General)
      131-684 History of medicine

      735-847 Medical education

      895 Medical physics. Electronics. Radiology, radioisotopes, etc.

    RA Public aspects of medicine
      5-418 Medicine and the state Including medical statistics, medical economics, provisions for medical care, medical sociology

      421-790 Public health. Hygiene. Preventive medicine Including environmental health, disposal of the dead, transmission of disease, epidemics, quarantine, personal hygiene

      791-954 Medical geography. Medical climatology and meteorology

      960-998 Medical centers. Hospitals. Clinics

      1001-1171 Forensic medicine

      1190-1270 Toxicology

    RB Pathology

    RC Internal medicine. Practice of medicine Including diagnosis, individual diseases and special types of diseases, diseases of systems or organ

      86-88 First aid in illness and injury

      321-576 Neurology and psychiatry

      952-954 Geriatrics

      955-962 Arctic and tropical medicine

      963-969 Industrial medicine

      970-1015 Military medicine

      1030-1097 Transportation medicine Including automotive, aviation and space medicine

      1200-1245 Sports medicine

    RD Surgery
      92-96 Wounds and injuries

      701-796 Orthopedics

    RE Ophthalmology

    RF Otorhinolaryngology

    RG Gynecology and obstetrics

    RJ Pediatrics

    RK Dentistry

    RL Dermatology

    RM Therapeutics. Pharmacology

      214-258 Diet therapy. Diet and dietetics in disease

      270-282 Serum therapy. Immunotherapy

      283-298 Endocrinotherapy

      300-666 Drugs and their action

      695-890 Physical medicine. Physical therapy

      845-862 Medical radiology

    RS Pharmacy and materia medica

    RT Nursing

    RV Botanic, Thomsonian, and eclectic medicine

    RX Homeopathy

    RZ Other systems of medicine

      201-265 Chiropractic

      301-397 Osteopathy

      400-408 Mental healing

S AGRICULTURE
    S Agriculture (General)
      560-575 Farm management. Farm economics

      583-589 Agricultural chemistry and physics

      590-599 Soils

      605-621 Reclamation and irrigation of farm land Including organic farming

      622-627 Soil conservation

      631-667 Fertilizers and soil improvement

      671-760 Farm machinery and engineering

      900-972 Conservation of natural resources For wildlife conservation, see QL; for marine resources conservation, see SH; for mineral resources conservation, see TN

      950-954 Land conservation

      970-972 Recreational resources conservation

    SB Plant culture
      110-112 Methods for special areas Including dry-land and tropical agricultue, irrigation farming

      114-118 Seeds

      119-125 Propagation

      183-317 Field crops

      318-450 Horticulture

      320-353 Vegetables

      354-402 Fruit culture and orchard care

      403-450 Flowers. Ornamental plants

      449-450 Flower arrangement and decoration

      451-466 Gardens and gardening

      469-479 Landscape gardening

      481-485 Parks and public reservations

      599-999 Diseases and pests Including treatment and control

    SD Forestry
      391-409 Sylviculture

      411-428 Conservation and protection Including forest reserves

      430-557 Exploitation and utilization Including timber trees, logging, transportation, valuation

      561-668 Forest policy and administration

    SF Animal culture
      91-92 Housing and environmental control

      95-99 Feeds and feeding. Animal nutrition

      105-109 Breeds and breeding Including artificial insemination, stock farms

      114-121 Exhibitions. Judging. Stock shows

      191-275 Cattle

      221-275 Dairying. Dairy products

      277-359 Horses Including horsemanship, racing

      371-379 Sheep. Wool

      381-386 Goats

      391-397 Swine

      402-405 Fur-bearing animals

      405.5-407 Laboratory animals

      411-459 Pets

      461-513 Birds Including cage birds, pigeons, poultry, game birds

      521-561 Insects Including bees, silkworm, cochineal

      600-1100 Veterinary medicine

    SH Aquaculture. Fisheries. Angling Including shellfish, lobsters, crabs, sealing, whaling
      401-691 Angling
    SK Hunting
      351-579 Wildlife management. Game protection
T TECHNOLOGY
    T Technology (General)
    TA Enginering (General). Civil engineering (General)

       

    TC Hydraulic engineering Including harbors and coast protective works, water supply engineering, dams, canals, irigation projects, drainage, ocean engineering

    TD Environmental technology. Sanitary engineering

    TE Highway engineering. Roads and pavements

    TF Rairoad engineering and operation Including street railways and subways

    TG Bridge engineering

    TH Building construction

       

      TJ            Mechanical Engineering

      TK          Electrical Engineering, Nuclear Engineering

      TL           Motor Vehicles, Aeronautics, Astronautics

      TN          Mining, Metallurgy

      TP           Chemical Technology

      TR           Photography

      TS           Manufactures

      TT           Arts and Crafts, Handicrafts

      TX          Home EconomicsTP            Chemical Technology

      TR           Photography

      TS           Manufactures

      TT           Ar