| Note | Page | |
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| 1. | 409. | Horologe of Flora. |
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| 2. | 410. | Gravity and centrifugal force. |
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| 3. | 411. | Velocity of light. |
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| 4. | 412. | Velocity of falling bodies. |
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| 5. | 412. | Hydromancy. |
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| 6. | 414. | Coins and medals. |
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| 7. | 421. | Why bodies revolve on the shorter axis. |
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| -- | 421. | Vis inertiÆ. |
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| 8. | 422. | Mechanical powers. |
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| 9. | 423. | Centre of gravity. |
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| 10. | 423. | The Indian blow-pipe. |
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| 11. | 425. | Springs. |
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| 12. | 427. | Elastic chairs and beds. |
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| 13. | 428. | Duck and drake. |
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| 14. | 428. | Vegetable elasticity. |
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| 15. | 428. | A simple orrery. |
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| 16. | 429. | Conic sections. |
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| 17. | 429. | Earthquake of Lisbon. |
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| 18. | 429. | Geology applied to agriculture. |
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| 19. | 430. | Buckland’s researches. |
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| 20. | 436. | The rifle. |
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| 21. | 438. | Centre of percussion. |
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| 22. | 438. | Spinning of the top. |
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| 23. | 439. | The mechanical powers. |
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| 24. | 446. | The cycloid. |
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| 25. | 447. | Billiards. |
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| 26. | 448. | Collision of bodies. |
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| 27. | 450. | Druidical remains. |
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| 28. | 456. | Animal suction. |
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| 29. | 459. | Accidental discoveries. |
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| 30. | 461. | Weight of the superincumbent ocean. |
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| 31. | 462. | Pecunia; its derivation. |
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| 32. | 462. | Cause of iridescence. |
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| 33. | 463. | Vegetable barometers. |
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| 34. | 463. | St. Swithin. |
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| 35. | 464. | The whale. |
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