Classification
140 - Specific philosophical schools
580 - Plants (Botany)
610 - Medicine & health
620 - Engineering & allied operations
16
700 - The arts; fine & decorative arts
15
363 - Other social problems & services
11
333 - Economics of land & energy
10
600 - Technology
10
900 - History & geography
9
380 - Commerce, communications & transportation
8
300 - Social sciences
5
576 - Genetics & evolution
5
414 - Phonology & phonetics
4
540 - Chemistry & allied sciences
4
551 - Geology, hydrology & meteorology
4
581 - Specific topics in natural history
4
630 - Agriculture & related technologies
4
000 - Computer science, information & general works
3
340 - Law
3
500 - Natural sciences & mathematics
3
612 - Human physiology
3
170 - Ethics
2
330 - Economics
2
615 - Pharmacology & therapeutics
2
658 - General management
2
720 - Architecture
2
800 - Literature & rhetoric
2
297 - Islam, Babism & Bahai Faith
1
370 - Education
1
400 - Language
1
530 - Physics
1