Classification
610 - Medicine & health
219
700 - The arts; fine & decorative arts
127
000 - Computer science, information & general works
76
333 - Economics of land & energy
63
140 - Specific philosophical schools
56
600 - Technology
54
612 - Human physiology
49
580 - Plants (Botany)
40
620 - Engineering & allied operations
36
380 - Commerce, communications & transportation
32
570 - Life sciences; biology
30
900 - History & geography
23
363 - Other social problems & services
21
540 - Chemistry & allied sciences
17
330 - Economics
15
500 - Natural sciences & mathematics
15
576 - Genetics & evolution
11
414 - Phonology & phonetics
9
370 - Education
8
630 - Agriculture & related technologies
8
590 - Animals (Zoology)
7
615 - Pharmacology & therapeutics
7
800 - Literature & rhetoric
6
304 - Factors affecting social behavior
5
320 - Political science
5
361 - Social problems & social welfare in general
4
720 - Architecture
4
340 - Law
3
780 - Music
3
100 - Philosophy & psychology
2
551 - Geology, hydrology & meteorology
2
573 - Specific physiological systems in animals
2
658 - General management
2
160 - Logic
1
170 - Ethics
1
530 - Physics
1
541 - Physical chemistry
1
547 - Organic chemistry
1
574 - [Unassigned]
1
581 - Specific topics in natural history
1
613 - Personal health & safety
1
616 - Diseases
1
617 - Surgery & related medical specialties
1
636 - Animal husbandry
1
664 - Food technology
1
741 - Drawing & drawings
1
743 - Drawing & drawings by subject
1
770 - Photography, photographs & computer art
1