The impossible crossword

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Across
  1. 3. Medical science that deals with blood and blood-organs
  2. 9. Someone who collects and studies butterflies and moths
  3. 10. a person who studies birds
  4. 13. The study of human beings, their ancestors and history
  5. 14. Someone who specialises in foot treatment
  6. 15. a person licensed to provide cosmetic treatments to the hair, skin, and nails
Down
  1. 1. one who makes a hobby of exploring and studying caves
  2. 2. A part of zoology that deals with fish
  3. 4. a science that deals with the atmosphere and its phenomena and especially with weather and weather forecasting
  4. 5. The science that deals with the immune-system
  5. 6. A part of zoology that deals with amphibians and reptiles
  6. 7. An interpreter of dreams
  7. 8. a person who believes the worst will happen
  8. 11. someone who loves books
  9. 12. A person who loves cats