| 33 | economics | ≈ S.SPEC.39.DH |
| ↑ | 333.72 | conservation |  → 344.046 639.9 719 ≈ S.SPEC.32.BJ `18C |
| ↑ | 344 | social law, safety, environment, nature reserves | → 333.72 363 614 690.22 ≈ S.SPEC.32.BJ e al Botta 2 |
| ↑ | 378 | university | → 727.3 ≈ S.SPEC.38.DE |
| ↑ | 501 | philosophy of science | → 001.4 ≈ :ZE.0 S.SPEC.38.DC |
| ↑ | 519 | probability, statistics, applied maths | → 610.72 ≈ :N.0 S.SPEC.42.GB |
| ↑ | 540 | chemistry in general | → 016.54 660.28 ≈ `59A S.SPEC.36.CB |
| ↑ | 543.1 | bromatological analysis | ≈ S.SPEC.36.CC |
| ↑ | 551.5 | meteorology | ≈ S.SPEC.39.EA |
| ↑ | 561 | palaeobotany and micropalaeontology | ≈ S.SPEC.40.ED `26B |
| ↑ | 570 | general biology | ≈ S.SPEC.30.BC |
| ↑ | 571.1 | animal physiology | ≈ S.SPEC.29.BB |
| ↑ | 571.2 | plant and microrganism physiology | → 581 ≈ S.SPEC.35.CA |
| ↑ | 571.5 | animal histology | → 611.018 ≈ S.SPEC.29.BA |
| ↑ | 571.6 | cell biology | → 572.8 611.018 ≈ S.SPEC.29.BA |
| ↑ | 572 | biochemistry | → 612.015 660.6 ≈ `59I S.SPEC.36.CB |
| ↑ | 576.5 | general genetics | → 572.8 581.3 591.3 599.93 ≈ S.SPEC.29.BB |
| ↑ | 576.8 | evolution | ≈ S.SPEC.27.AQ |
| ↑ | 577.6 | hydrobiology, freshwater ecology | ≈ S.SPEC.32.BI |
| ↑ | 579 | microbiology, fungus, algae | → 576 616.01 ≈ S.SPEC.26.AM S.SPEC.30.BE |
| ↑ | 579.2 | virology | → 616.91 ≈ S.SPEC.32.BG |
| ↑ | 579.5 | fungus, mycology | → 616.969 ≈ MICOL. Sez.Mic |
| ↑ | 579.8 | algae | ≈ S.SPEC.19.AA |
| ↑ | 580 | botany in general | → 630 ≈ S.SPEC.20.AC |
| ↑ | 580.12 | systematic botany | ≈ S.FLORE.G |
| ↑ | 580.73 | botanical gardens | ≈ S.SPEC.20.AB |
| ↑ | 580.9 | history of botany | ≈ S.SPEC.20.AB |
| ↑ | 581.7 | plants of special environments, plant ecology | → 577 ≈ S.SPEC.24.AH |
| ↑ | 581.9 | phytogeography, floras | ≈ S.SPEC.24.AH S.FLORE |
| ↑ | 581.94 | plants of Europe | ≈ S.FLORE.H S.FLORE.I |
| ↑ | 581.945 | plants of Italy | ≈ S.FLORE.C |
| ↑ | 581.95 | plants of Asia | ≈ S.FLORE.F |
| ↑ | 581.955 | plants of Iran | ≈ S.FLORE.M |
| ↑ | 581.96 | plants of Africa | ≈ S.FLORE.L |
| ↑ | 581.97 | plants of North and Central America | ≈ S.FLORE.M S.SPEC.41.FC |
| ↑ | 581.98 | plants of South America | ≈ S.FLORE.N S.SPEC.41.FB |
| ↑ | 582.0463 | flowers and their parts | ≈ S.SPEC.28.AR |
| ↑ | 586 | cryptogams | ≈ S.SPEC.25.AL S.SPEC.26.AN |
| ↑ | 590 | zoology in general | ≈ S.SPEC.31.BE |
| ↑ | 610 | medicine in general | → 174.2 780.061 ≈ S.SPEC.32.BH |
| ↑ | 615.321 | plant-derived drugs, phytotherapy, pharmacognosis | → 581.634 ≈ S.SPEC.22.AF |
| ↑ | 615.329 | drugs from microorganisms, fungi, algae, antibiotics | ≈ S.SPEC.37.CE |
| ↑ | 616.9 | oncology and infectuous diseases | → 618.929 ≈ S.SPEC.23.AF |
| ↑ | 628.5 | pollution control techniques | → 363.7 628.16 ≈ S.SPEC.37.CF |
| ↑ | 630 | agriculture in general | → 338.1 343.076 580 ≈ S.SPEC.21.AE |
| ↑ | 631.4 | soil science | → 551.3 ≈ S.SPEC.40.EB |
| ↑ | 632 | plant pathology, biological and chemical control | → 581 668.6 ≈ S.SPEC.34.HA |
| ↑ | 632.32 | bacterial diseases of plants | → 579.3 ≈ S.SPEC.21.AD |
| ↑ | 632.9 | pesticides | ≈ S.SPEC.27.AP |
| ↑ | 633.1 | grain growth | ≈ S.SPEC.28.AT |
| ↑ | 633.7 | cultivation of alkaloid plants, tobacco, cacao | ≈ S.SPEC.23.AG S.SPEC.25.AI |
| ↑ | 634 | arboriculture, fruit farming | ≈ S.SPEC.27.AO |
| ↑ | 635 | horticulture, vegetables, gardening | ≈ S.SPEC.43.IE |
| ↑ | 635.9 | floriculture, ornamental plants | → 582.13 712 ≈ S.FLORE.B |
| ↑ | 636 | husbandry, breeding | ≈ S.SPEC.32.BF |
| ↑ | 663.2 | oenology | → 634.8 ≈ S.SPEC.28.AS |
| ↑ | 711 | area planning | → 346 526 ≈ S.SPEC.43.ID |
| ↑ | 770 | photography in general | ≈ `60G S.SPEC.42.GC |
| ↑ | 910 | geography in general, biogeography | ≈ `11A S.SPEC.40.EC |
| ↑ | 912 | cartography | → 526 551.072 ≈ `11C S.SPEC.43.IF |
| ↑ | 930.1 | archaeology, archaeometry | → 720.288 ≈ S.SPEC.38.DA |
| ↑ | S.SPEC.25.AL | bryology, mosses | → S.SPEC.44.AA ≈ 586 |
| ↑ | S.SPEC.26.AN | lichenology | → S.SPEC.44.AA ≈ 586 |
| ↑ | S.SPEC.44.AA | ferns and other cryptogamae | → S.SPEC.25.AL S.SPEC.26.AN MICOL ≈ 586 |
