Classification
576 - Genetics & evolution
357
571 - Physiology & related subjects
78
577 - Ecology
75
570 - Life sciences; biology
66
590 - Animals (Zoology)
43
560 - Paleontology; paleozoology
35
572 - Biochemistry
35
579 - Microorganisms, fungi & algae
33
612 - Human physiology
29
616 - Diseases
25
591 - Specific topics in natural history
24
592 - Invertebrates
24
580 - Plants (Botany)
23
301 - Sociology & anthropology
21
333 - Economics of land & energy
21
581 - Specific topics in natural history
18
610 - Medicine & health
18
004 - Data processing & computer science
14
006 - Special computer methods
14
595 - Arthropods
12
530 - Physics
11
551 - Geology, hydrology & meteorology
11
611 - Human anatomy, cytology & histology
11
599 - Mammals
10
150 - Psychology
9
550 - Earth sciences
9
578 - Natural history of organisms
9
520 - Astronomy & allied sciences
8
501 - Philosophy & theory
7
930 - History of ancient world to ca. 499
7
630 - Agriculture & related technologies
6
500 - Natural sciences & mathematics
5
519 - Probabilities & applied mathematics
5
547 - Organic chemistry
5
596 - Chordates
5
620 - Engineering & allied operations
5
910 - Geography & travel
5
100 - Philosophy & psychology
3
120 - Epistemology, causation & humankind
3
306 - Culture & institutions
3
330 - Economics
3
515 - Analysis
3
540 - Chemistry & allied sciences
3
614 - Incidence & prevention of disease
3
636 - Animal husbandry
3
660 - Chemical engineering
3
700 - The arts; fine & decorative arts
3
900 - History & geography
3
000 - Computer science, information & general works
2
003 - Systems
2
more ...