Classification
580 - Plants (Botany)
14
571 - Physiology & related subjects
11
581 - Specific topics in natural history
5
630 - Agriculture & related technologies
5
577 - Ecology
4
001 - Knowledge
3
300 - Social sciences
3
363 - Other social problems & services
3
572 - Biochemistry
2
610 - Medicine & health
2
631 - Techniques, equipment & materials
2
000 - Computer science, information & general works
1
551 - Geology, hydrology & meteorology
1
570 - Life sciences; biology
1
600 - Technology
1
612 - Human physiology
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1