URI
Notation
5
Caption
MATHEMATICS. NATURAL SCIENCES
Scope Note
Class here generalities about the pure sciences and the exact or mathematical sciences (including astronomy, mechanics and mathematical physics)
Examples
5(091) History of natural sciences
Broader class
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Narrower classes
502/504Environmental science. Conservation of natural resources. Threats to the environment and protection against them
51Mathematics
52Astronomy. Astrophysics. Space research. Geodesy
53Physics
54Chemistry. Crystallography. Mineralogy
55Earth Sciences. Geological sciences
56Palaeontology
57Biological sciences in general
58Botany
59Zoology