Larry's 21 Words for the 21st

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Across
  1. 3. And all that ___
  2. 6. Wild beast-ism
  3. 7. Heavy painting
  4. 9. Numbers and foods
  5. 11. What's hidden is then revealed
  6. 13. Greek, female, mathematic martyr
  7. 15. Bad in the bottle
  8. 16. Be still my heart
  9. 17. Archimedes was looking for one
  10. 18. Mother of modernity
  11. 19. Three generations of painters
  12. 20. Keeps it open
Down
  1. 1. Fired clay
  2. 2. Euclid practiced it
  3. 4. On your face and in your glass
  4. 5. Impressed the Impressionists
  5. 6. _______'s last theorem
  6. 8. Heart throb
  7. 10. Nudes desccend them
  8. 12. Passing time with a pencil
  9. 14. Three points make one