Classification
540 - Chemistry & allied sciences
612 - Human physiology
610 - Medicine & health
15
000 - Computer science, information & general works
13
580 - Plants (Botany)
13
700 - The arts; fine & decorative arts
13
333 - Economics of land & energy
9
581 - Specific topics in natural history
8
140 - Specific philosophical schools
7
363 - Other social problems & services
7
600 - Technology
7
380 - Commerce, communications & transportation
6
576 - Genetics & evolution
6
620 - Engineering & allied operations
6
414 - Phonology & phonetics
5
500 - Natural sciences & mathematics
4
300 - Social sciences
3
551 - Geology, hydrology & meteorology
3
630 - Agriculture & related technologies
2
370 - Education
1
590 - Animals (Zoology)
1
615 - Pharmacology & therapeutics
1
900 - History & geography
1