Classification
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570 - Life sciences; biology
68
414 - Phonology & phonetics
58
100 - Philosophy & psychology
57
304 - Factors affecting social behavior
51
581 - Specific topics in natural history
41
410 - Linguistics
38
659 - Advertising & public relations
37
510 - Mathematics
34
910 - Geography & travel
33
153 - Mental processes & intelligence
29
158 - Applied psychology
28
615 - Pharmacology & therapeutics
28
681 - Precision instruments & other devices
27
515 - Analysis
26
301 - Sociology & anthropology
25
780 - Music
23
001 - Knowledge
22
332 - Financial economics
22
534 - Sound & related vibrations
22
170 - Ethics
21
511 - General principles of mathematics
19
200 - Religion
17
361 - Social problems & social welfare in general
17
323 - Civil & political rights
16
770 - Photography, photographs & computer art
16
550 - Earth sciences
15
547 - Organic chemistry
14
624 - Civil engineering
14
343 - Military, tax, trade & industrial law
13
368 - Insurance
13
657 - Accounting
12
020 - Library & information sciences
11
030 - General encyclopedic works
10
046 - [Unassigned]
10
306 - Culture & institutions
10
062 - Organizations in British Isles; in England
9
160 - Logic
9
668 - Technology of other organic products
9
297 - Islam, Babism & Bahai Faith
8
350 - Public administration & military science
8
011 - Bibliographies
7
535 - Light & infrared & ultraviolet phenomena
7
537 - Electricity & electronics
7
120 - Epistemology, causation & humankind
6
305 - Social groups
6
401 - Philosophy & theory
6
520 - Astronomy & allied sciences
6
616 - Diseases
6
660 - Chemical engineering
6
696 - Utilities
6
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