Classification
610 - Medicine & health
593
572 - Biochemistry
526
570 - Life sciences; biology
443
000 - Computer science, information & general works
370
700 - The arts; fine & decorative arts
363
333 - Economics of land & energy
239
580 - Plants (Botany)
235
600 - Technology
200
620 - Engineering & allied operations
158
140 - Specific philosophical schools
155
540 - Chemistry & allied sciences
134
363 - Other social problems & services
130
571 - Physiology & related subjects
122
380 - Commerce, communications & transportation
115
612 - Human physiology
107
615 - Pharmacology & therapeutics
103
576 - Genetics & evolution
97
616 - Diseases
68
330 - Economics
58
900 - History & geography
57
547 - Organic chemistry
47
581 - Specific topics in natural history
45
500 - Natural sciences & mathematics
44
630 - Agriculture & related technologies
43
660 - Chemical engineering
43
414 - Phonology & phonetics
37
304 - Factors affecting social behavior
32
543 - Analytical chemistry
31
541 - Physical chemistry
28
664 - Food technology
26
551 - Geology, hydrology & meteorology
23
530 - Physics
17
574 - [Unassigned]
17
720 - Architecture
16
800 - Literature & rhetoric
15
370 - Education
13
579 - Microorganisms, fungi & algae
11
641 - Food & drink
11
361 - Social problems & social welfare in general
10
320 - Political science
8
668 - Technology of other organic products
8
100 - Philosophy & psychology
6
340 - Law
6
590 - Animals (Zoology)
6
632 - Plant injuries, diseases & pests
6
658 - General management
6
546 - Inorganic chemistry
5
548 - Crystallography
5
300 - Social sciences
4
400 - Language
4
more ...