Across
- 1. study of navigation through air or space
- 5. study of plant nutrition; soil yields
- 7. study of algae
- 9. study of productivity of land
- 11. science or study of gliding
- 12. study of mites
- 13. study of truth
- 16. study of aerolites; meteorites
- 18. science of air pressure; art of ballooning
- 20. study of glands
- 21. study of agricultural soils
- 22. science of pleasure and pain
Down
- 2. dynamics of gases; science of movement in a flow of air or gas
- 3. science or study of grasses
- 4. study of the atmosphere
- 6. grammar book; science of inflections in grammar
- 8. study of medical remedies
- 10. collecting of air-mail stamps
- 13. science of sound
- 14. study of airborne organisms
- 15. the comparative study of primitive peoples
- 17. therapeutics
- 18. science of generative organs
- 19. art and theory of prize-fighting