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LC Classification: Q

A breakdown of the Library of Congress Classification system

Q - Overview

Q - Science (General)

QA - Mathematics

QB - Astronomy

QC - Physics

QD - Chemistry

QE - Geology

QH - Natural history - Biology 

QK - Botany

QL - Zoology

QM - Human anatomy

QP - Physiology

QR - Microbiology

For Further Details

For more detailed information, visit the Library of Congress Classification Outline.

Q - Science

Q - Science (General)

  • Q1-295 General
  • Q300-390 Cybernetics. Information theory

QA - Mathematics

  • QA47-59 Tables
  • QA71-90 Instruments and machines
  • 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

QB - Astronomy

  • QB140-237 Practical and spherical astronomy
  • QB349-421 Theoretical astronomy and celestial mechanics
  • QB495-903 Descriptive astronomy
    • QB500.5-785 Solar system
    • QB799-903 Stars

QC - Physics

  • QC120-168.85 Descriptive and experimental mechanics
  • QC221-246 Acoustics. Sound
  • QC251-338.5 Heat
  • QC350-467 Optics. Light
  • QC501-766 Electricity and magnetism
  • QC770-798 Nuclear and particle physics. Atomic energy. Radioactivity
  • QC851-999 Meterology. Climatology

QD - Chemistry

  • QD71-142 Analytical chemistry
  • QD146-197 Inorganic chemistry
  • QD241-441 Organic chemistry
  • QD450-801 Physical and theoretical chemistry
  • QD901-999 Crystallography

QE - Geology

  • QE351-399.2 Mineralogy
  • QE420-499 Petrology
  • QE500-639.5 Dynamic and structural geology
  • QE701-760 Paleontology
  • QE760.8-899.2 Paleozoology
  • QE901-966.5 Paleobotany

QH - Natural history - Biology 

  • QH1-278.5 Natural history
    • QH201-278.5 Microscopy
  • QH301-705.5 Biology
    • QH359-425 Evolution
    • QH426-470 Genetics
    • QH471-489 Reproduction
    • QH501-531 Life
    • QH540-549.5 Ecology

QK - Botany

  • QK474.8-495 Spermatophyta. Phanerogams
  • QK504-638 Cryptogams
  • QK640-707 Plant anatomy
  • QK710-899 Plant physiology
  • QK900-989 Plant ecology

QL - Zoology

  • QL360-599.82 Invertebrates
  • QL605-739.8 Chordates. Vertebrates
  • QL750-795 Animal behavior
  • QL801-950.9 Anatomy
  • QL951-991 Embryology

QM - Human anatomy

  • QM1-511 General
  • QM531-549 Regional anatomy
  • QM550-577.8 Human and comparative histology
  • QM601-695 Human embryology

QP - Physiology

  • QP351-495 Neurophysiology and neuropsychology
  • QP501-801 Animal biochemistry
  • QP901-981 Experimental pharmacology

QR - Microbiology

  • QR75-99.5 Bacteria
  • QR100-130 Microbial ecology
  • QR171 Microorganism in the animal body
  • QR180-189.5 Immunology
  • QR355-502 Virology