| 1, 1. | The Fissures of the 26th of April. |
| 2, 3. | Small Hill thrown up on the morning of the 26th of April, from below which issued the great current of Lava. |
| 4, 4, 4. | The Mouths out of which the Lava issued. |
| 5, 5. | The larger Lava Stream, which passed near the Observatory by the Fossa della Vetrana. |
| 6, 6. | The other Lava Stream, which, after dividing from the last, took the direction of Resina. |
| 7, 7. | The Lava which ran down towards the Camaldoli. |
| 8 & 9. | The two Craters on the summit of the Cone. |
