Crossword Puzzle

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