Crossword Puzzle

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