Across
- 2. collector of books
- 4. device that record temperature changes
- 6. instrument that measures temperature
- 9. sickness
- 12. distinguishing differences between things
Down
- 1. to have poor nutrition
- 3. having one color
- 5. study of the population
- 7. device used to control the temperature
- 8. to tell apart
- 10. to take away a weapon
- 11. list of books by author and publisher