Across
- 3. unhiddenness or disclosure
- 7. Created a body of theory
- 8. death instinct
- 10. bringing forth; making or producing something for a purpose
- 11. the theory of evolution of species by natural selection
- 12. for production of paper and cloth
- 14. Most influential figure in medicine
- 16. portion of the mind in which morality and higher principles reside
- 17. first to explain the world in terms of law
- 18. direct generator that creates direct current using a commutator
Down
- 1. located on the southernmost tip of ancient Mesopotamia
- 2. patient of Dr. Freud’s colleague
- 4. most useful medieval inventions
- 5. are made of bricks died out in the sun
- 6. pictures or designs made by setting small pieces of stone, glass and tile
- 8. seeks to invent new or improved tools and materials
- 9. current thoughts, feeling and focus
- 13. first known newspaper
- 14. One of the greatest feats of Roman Engineering
- 15. perfect element