Class Q - Science

Subclass Q  - Science ( General )

Q 300-390       Cybernetics

Subclass QA - Mathematics

QA 75-76.95     Calculating machines
QA 75.5-76.95   Electronic computers. Computer science
QA 76.75-76.765 Computer software
QA 76.76.C68    Computer viruses
QA 76.76.O63    Computer operating systems
QA 76.76.W64    Computer operating systems
QA 79.9.A25     Computer security, cryptography, cryptology,
                data security, information security, network security,
                PC security

Subclass QB - Astronomy

Subclass QC - Physics

QC 350 - 467.  Optics. Light.
QC 450 - 467.  Spectroscopy.
QC 501 - 766.  Electricity and magnetism.
QC 750 - 766.  Magnetism.
QC 801 - 809.  Geophysics.  Cosmic physics.
QC 811 - 849.  Geomagnetism.
QC 851 - 999.  Meteorology.  Climatology.

Subclass QD - Chemistry

Subclass QE - Geology

QE 001 - 996.5.  Geology.
QE 001 - 350.62. General.  Including geographical subdivisions.
QE 351 - 399.2.  Mineralogy.
QE 420 - 499.    Petrology.
QE 500 - 639.5.  Dynamic and structural geology.
QE 521 - 545.    Volcanoes and earthquakes.
QE 601 - 613.5.  Structural geology.
QE 640 - 699.    Stratigraphy.
QE 701 - 760.    Paleontology.
QE 760.8 - 899.2.  Paleozoology.
QE 901 - 996.5.  Paleobotany.

Subclass QH - Natural History - Biology

Subclass QK - Botany

Subclass QL - Zoology

Subclass QM - Human Anatomy

Subclass QP - Physiology

Subclass QR - Microbiology

000.