Classification
577 - Ecology
11
551 - Geology, hydrology & meteorology
6
641 - Food & drink
3
664 - Food technology
3
000 - Computer science, information & general works
2
363 - Other social problems & services
2
700 - The arts; fine & decorative arts
2
301 - Sociology & anthropology
1
330 - Economics
1
414 - Phonology & phonetics
1
526 - Mathematical geography
1
540 - Chemistry & allied sciences
1
550 - Earth sciences
1
574 - [Unassigned]
1
579 - Microorganisms, fungi & algae
1
590 - Animals (Zoology)
1
610 - Medicine & health
1
615 - Pharmacology & therapeutics
1
900 - History & geography
1