Classification
620 - Engineering & allied operations
95
664 - Food technology
31
641 - Food & drink
28
530 - Physics
20
006 - Special computer methods
17
550 - Earth sciences
16
691 - Building materials
16
621 - Applied physics
15
531 - Classical mechanics; solid mechanics
14
660 - Chemical engineering
10
551 - Geology, hydrology & meteorology
9
571 - Physiology & related subjects
7
610 - Medicine & health
7
624 - Civil engineering
7
690 - Buildings
7
333 - Economics of land & energy
6
515 - Analysis
6
526 - Mathematical geography
5
670 - Manufacturing
5
536 - Heat
4
543 - Analytical chemistry
4
616 - Diseases
4
667 - Cleaning, color & coating technologies
4
519 - Probabilities & applied mathematics
3
541 - Physical chemistry
3
628 - Sanitary & municipal engineering
3
629 - Other branches of engineering
3
003 - Systems
2
363 - Other social problems & services
2
518 - Numerical analysis
2
523 - Specific celestial bodies & phenomena
2
570 - Life sciences; biology
2
572 - Biochemistry
2
612 - Human physiology
2
615 - Pharmacology & therapeutics
2
617 - Surgery & related medical specialties
2
622 - Mining & related operations
2
004 - Data processing & computer science
1
062 - Organizations in British Isles; in England
1
304 - Factors affecting social behavior
1
539 - Modern physics
1
540 - Chemistry & allied sciences
1
542 - Techniques, equipment & materials
1
546 - Inorganic chemistry
1
578 - Natural history of organisms
1
580 - Plants (Botany)
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
662 - Explosives, fuels & related products
1