Includes...

• Natural sciences
  • General resources; national centres; philosophy and theory; apparatus, equipment, materials; journals & magazines; societies; education; museums; research; Natural history; Scientists.
• Astronomy and allied sciences
  • General resources; societies; Astronomy techniques, proceedures, apparatus, equipment, materials; Specific celestial bodies and phenomena; Astrophysics; Eclipses; Earth (astronomical geography); Cartography and mathematical geography; Cronology.
• Physics
  • General resources; departments; journals; education; societies; Theoretical and mathematical physics; Quantum mechanics, quantum physics; Classical mechanics, solid mechanics; Fluid mechanics; Sound and related vibrations; Light and paraphotic phenomena; Heat and thermodynamics; Magnetism; Modern Physics; Particle physics.
• Chemistry
  • General resources; companies; departments; education; journals; societies; Physical and theoretical chemistry; Analytical chemistry; Inorganic chemistry; Organic chemistry; Crystallography; Mineralogy.
• Earth sciences
  • General resources; departments; journals; societies; Geology; Gross structure and properties of the earth; Volcanoes; Earthquakes; Geomorphology; Oceanography; Hydrology; Climatology and weather; Global change; Petrology; Economic geology; Eart sciences of - Europe - Asia - Africa - North & South America - Australia & Antartica.
• Palaeontology
  • General resources; Palaeobotany, fossil micro organisms; Dinosaurs; Fossil aves (birds); Fossil mammalia.
• Life sciences, biology
  • General resources; education; journals; societies; Physiology and related subjects; Plant pathology and physiology; Biochemistry and molecular biology; Genome mapping; Specific systems in animals; Genetics; Evolution; Ecology; Natural history of organisms and related subjects; Microorganisms, fungi, algae.
• Plants
  • General resources; Botanical gardens and museums; Plants of specific areas; Fruits and nontaxonomic kinds of plants; Trees and shrubs; Magnoliopsida; Liliopsida;Pinophyta, Coniferales; Bryophyta.
• Animals
  
  • General resources; Specific topics in natural history of animals; worms; Marine and seashore invertebrates; Molluscs and other shellfish; Arthropoda; Crustacrans; Insects; Chordata; Fish; Amphibians & reptiles; Sharks; Birds; Mamals; Marsupials; Bats; Whales; Horses; Land carnivores; Primates; Humangenetics.