Classification
140 - Specific philosophical schools
170 - Ethics
333 - Economics of land & energy
610 - Medicine & health
100 - Philosophy & psychology
4
300 - Social sciences
3
363 - Other social problems & services
3
576 - Genetics & evolution
3
700 - The arts; fine & decorative arts
3
200 - Religion
2
340 - Law
2
380 - Commerce, communications & transportation
2
580 - Plants (Botany)
2
600 - Technology
2
615 - Pharmacology & therapeutics
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
720 - Architecture
2
800 - Literature & rhetoric
2
900 - History & geography
2
301 - Sociology & anthropology
1
320 - Political science
1
330 - Economics
1
370 - Education
1
551 - Geology, hydrology & meteorology
1