Library of Congress Classification Outline – Class Q

LIBRARY OF CONGRESS CLASSIFICATION OUTLINE

CLASS Q – SCIENCE

Subclass Q

 

Q1-390 Science (General)

Q1-295 General

Q300-390 Cybernetics

Q350-390 Information theory

 

Subclass QA

 

QA1-939 Mathematics

QA1-43 General

QA47-59 Tables

QA71-90 Instruments and machines

QA75-76.95 Calculating machines

QA75.5-76.95 Electronic computers. Computer science

QA76.75-76.765 Computer software

QA101-(145) Elementary mathematics. Arithmetic

QA150-272.5 Algebra

QA273-280 Probabilities. Mathematical statistics

QA299.6-433 Analysis

QA440-699 Geometry. Trigonometry. Topology

QA801-939 Analytic mechanics

 

Subclass QB

 

QB1-991 Astronomy

QB1-139 General

QB140-237 Practical and spherical astronomy

QB275-343 Geodesy

QB349-421 Theoretical astronomy and celestial mechanics

QB455-456 Astrogeology

QB460-466 Astrophysics

QB468-480 Non-optical methods of astronomy

QB495-903 Descriptive astronomy

QB500.5-785 Solar system

QB799-903 Stars

QB980-991 Cosmogony. Cosmology

 

Subclass QC

 

QC1-999 Physics

QC1-75 General

QC81-114 Weights and measures

QC120-168.85 Descriptive and experimental mechanics

QC170-197 Atomic physics. Constitution and properties of matter

 

Including molecular physics, relativity, quantum theory, and

solid state physics

QC221-246 Acoustics. Sound

QC251-338.5 Heat

QC310.15-319 Thermodynamics

QC350-467 Optics. Light

QC450-467 Spectroscopy

QC474-496.9 Radiation physics (General)

QC501-766 Electricity and magnetism

QC501-(721) Electricity

QC669-675.8 Electromagnetic theory

QC676-678.6 Radio waves (Theory)

QC701-715.4 Electric discharge

QC717.6-718.8 Plasma physics. Ionized gases

QC750-766 Magnetism

QC770-798 Nuclear and particle physics. Atomic energy. Radioactivity

QC793-793.5 Elementary particle physics

QC794.95-798 Radioactivity and radioactive substances

QC801-809 Geophysics. Cosmic physics

QC811-849 Geomagnetism

QC851-999 Meteorology. Climatology

Including the earth’s atmosphere

QC974.5-976 Meteorological optics

QC980-999 Climatology and weather

QC994.95-999 Weather forecasting

 

Subclass QD

 

QD1-999 Chemistry

QD1-65 General

Including alchemy

QD71-142 Analytical chemistry

QD146-197 Inorganic chemistry

QD241-441 Organic chemistry

QD415-436 Biochemistry

QD450-801 Physical and theoretical chemistry

QD625-655 Radiation chemistry

QD701-731 Photochemistry

QD901-999 Crystallography

 

Subclass QE

 

QE1-996.5 Geology

QE1-350.62 General

Including geographical divisions

QE351-399.2 Mineralogy

QE420-499 Petrology

QE500-639.5 Dynamic and structural geology

QE521-545 Volcanoes and earthquakes

QE601-613.5 Structural geology

 

QE640-699 Stratigraphy

QE701-760 Paleontology

QE760.8-899.2 Paleozoology

QE901-996.5 Paleobotany

 

Subclass QH

 

QH1-278.5 Natural history (General)

QH1-(199.5) General

Including nature conservation, geographical distribution

QH201-278.5 Microscopy

QH301-705.5 Biology (General)

QH359-425 Evolution

QH426-470 Genetics

QH471-489 Reproduction

QH501-531 Life

QH540-549.5 Ecology

QH573-671 Cytology

QH705-705.5 Economic biology

 

Subclass QK

 

QK1-989 Botany

QK1-474.5 General

Including geographical distribution

QK474.8-495 Spermatophyta. Phanerogams

QK494-494.5 Gymnosperms

QK495 Angiosperms

QK504-(638) Cryptogams

QK640-(707) Plant anatomy

QK710-899 Plant physiology

QK900-989 Plant ecology

 

Subclass QL

 

QL1-991 Zoology

QL1-355 General

Including geographical distribution

QL360-599.82 Invertebrates

QL461-599.82 Insects

QL605-739.8 Chordates. Vertebrates

QL614-639.8 Fishes

QL640-669.3 Reptiles and amphibians

QL671-699 Birds

QL700-739.8 Mammals

QL750-795 Animal behavior

QL791-795 Stories and anecdotes

QL799-799.5 Morphology

QL801-950.9 Anatomy

QL951-991 Embryology

 

Subclass QM

 

QM1-695 Human anatomy

QM1-511 General

QM531-549 Regional anatomy

QM550-577.8 Human and comparative histology

QM601-695 Human embryology

 

Subclass QP

 

QP1-(981) Physiology

QP1-345 General

Including influence of the environment

QP351-495 Neurophysiology and neuropsychology

QP501-801 Animal biochemistry

QP(901)-(981) Experimental pharmacology

 

Subclass QR

 

QR1-502 Microbiology

QR1-74.5 General

QR75-99.5 Bacteria

QR99.6-99.8 Cyanobacteria

QR100-130 Microbial ecology

QR171 Microorganisms in the animal body

QR180-189.5 Immunology

QR355-502 Virology