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Journ.gif (260 bytes) GEO. Virtual Reality links

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360 Social services
500 Natural sciences | 520 Astronomy | 530 Physics | 540 Chemistry
550 Earth sciences | 560 Paleontology
570 Life sciences | 580 Plants | 590 Animals
600 Technology | 620 Engineering | 630 Agriculture | 660 Chemical engineering
900 Geography, History

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360 Social services, associations
space.gif (93 bytes)363 Other social problems and services
space.gif (93 bytes)space.gif (93 bytes)363.7 Environmental problems

370 Education

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500 Natural sciences and mathematics
space.gif (93 bytes)space.gif (93 bytes)500.5 Space sciences
space.gif (93 bytes)503 Dictionaries and encyclopedias

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520 Astronomy
space.gif (93 bytes)521 Celestial mechanics
space.gif (93 bytes)space.gif (93 bytes)521.3 Orbits
space.gif (93 bytes)522 Techniques, equipment, materials
space.gif (93 bytes)space.gif (93 bytes)522.1 Observatories
space.gif (93 bytes)523 Specific celestial bodies and phenomena
space.gif (93 bytes)space.gif (93 bytes)523.3 The Moon
space.gif (93 bytes)space.gif (93 bytes)523.4 Planets
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)523.41 Mercury
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)523.42 Venus
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)523.43 Mars
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)523.44 Asteroids, Planetoids
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)523.45 Jupiter and moons
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)523.46 Saturn and moons
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)523.47 Uranus and moons
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)523.48 Trans-Uranian planets, Neptune and Pluto
space.gif (93 bytes)space.gif (93 bytes)523.5 Meteors, solar wind, zodiacal light
space.gif (93 bytes)space.gif (93 bytes)523.6 Comets
space.gif (93 bytes)space.gif (93 bytes)523.7 Sun
space.gif (93 bytes)525 Earth, Astronomical geography
space.gif (93 bytes)526 Mathematical geography
space.gif (93 bytes)527 Celestial navigation
space.gif (93 bytes)528 Ephemerides
space.gif (93 bytes)529 Chronology

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530 Physics

540 Chemistry and allied sciences
space.gif (93 bytes)548 Crystallography
space.gif (93 bytes)549 Mineralogy

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550 Earth sciences
space.gif (93 bytes)551 Geology, hydrology, meteorology
space.gif (93 bytes)space.gif (93 bytes)551.1 Gross structure and properties of the earth
space.gif (93 bytes)space.gif (93 bytes)551.2 Volcanoes, earthquakes, thermal waters and gases
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)551.21 Volcanoes
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)551.22 Earthquakes
space.gif (93 bytes)space.gif (93 bytes)551.3 Surface and exogenous processes and their agents
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)551.46 Hydrosphere Oceanography
space.gif (93 bytes)space.gif (93 bytes)551.5 Meteorology
space.gif (93 bytes)space.gif (93 bytes)551.6 Climatology and weather
space.gif (93 bytes)space.gif (93 bytes)551.7 Historical geology
space.gif (93 bytes)552 Petrology
space.gif (93 bytes)553 Economic geology
space.gif (93 bytes)space.gif (93 bytes)553.8 Gems, see also 549
space.gif (93 bytes)554 Earth sciences of Europe
space.gif (93 bytes)555 Earth sciences of Asia
space.gif (93 bytes)556 Earth sciences of Africa
space.gif (93 bytes)557 Earth sciences of North America
space.gif (93 bytes)558 Earth sciences of South America
space.gif (93 bytes)559 Earth sciences of other areas

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560 Paleontology and paleozoology

570 Life sciences
space.gif (93 bytes)575 Evolution and genetics
space.gif (93 bytes)579 Microorganisms, fungi, algae

580 Plants

590 Animals

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600 Technology, Applied sciences

620 Engineering and allied operations
space.gif (93 bytes)space.gif (93 bytes)620.1 Material Science and Testing
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)620.14 Technical ceramics
space.gif (93 bytes)space.gif (93 bytes)620.4
space.gif (93 bytes)622 Mining and related operations
space.gif (93 bytes)space.gif (93 bytes)622.1 Prospecting
space.gif (93 bytes)space.gif (93 bytes)622.3 Mining for specific materials
space.gif (93 bytes)629 Other branches of engineering
space.gif (93 bytes)space.gif (93 bytes)629.4 Astronautics
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)629.43 Unmanned space flight
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)629.44 Auxiliary spacecraft, space stations
space.gif (93 bytes)space.gif (93 bytes)space.gif (93 bytes)629.45 Manned space flight

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630 Agriculture
space.gif (93 bytes)639 Conservation

660 Chemical engineering

900 Geography, History

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Georg R Douglas Hamrahlíđ College, Reykjavík, Iceland