The ologyies that dont exist

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Across
  1. 5. The study of plumbing
  2. 6. The study of weather
  3. 9. The study of melodies
  4. 11. The study of time
  5. 12. The study of Gatorade
  6. 14. The study of Printers
  7. 15. The study of bricks
  8. 16. The study of Chris Bonvissuto
  9. 17. The study of small things
  10. 20. The study of a certain type of bird and something else....
  11. 21. The study of researching ologies
  12. 22. The study of rings
Down
  1. 1. The study of crosswords
  2. 2. The study of nothing
  3. 3. The study of big thin
  4. 4. The study of public things
  5. 7. The study of everything
  6. 8. The study of language
  7. 10. The study of Monopoly
  8. 13. The study of Geometry Dash
  9. 18. The study of drugs
  10. 19. The study of puzzles