- [Footnote:
Toises. Eng. ft.
Poulett Scrope, 1822, barometric, somewhat uncertain
from the proportion between the diameters
of the tube and cistern being unknown 604 3862
Monticelli and Covelli, 1822 624 3990
Humboldt, 1822 629 4022
Most probable result 317 toises, or 2027 English feet, above the Hermitage; or 625 toises, or 3996 English feet, above the level of the sea.
B. The lowest and southern margin of the crater opposite to Bosche Tre Case.
Toises. Eng. ft.
After the eruption of 1794 this edge became 400
(426 Eng.) feet lower than the Rocca del Palo;
therefore if we estimate the latter at 625 toises
(3996 English feet) 559 3574
Gay-Lussac, Leopold von Buch, and Humboldt,
1805, barometric 534 3414
Humboldt, 1822, barometric 546 3491
C. Height of the cone of scoriæ inside the crater, which fell in on the 22d of October, 1822.
Toises. Eng. ft.
Lord Minto, barometric 650 4156
Brioschi, trigonometric, according to different
combinations either 636 4066
Or 641 4098
Probable final result for the height of the above-mentioned cone of scoriæ 646 toises, or 4130 English feet.
D. Punta Nasone, highest summit of the Somma.
Toises. Eng. ft.
Schuckburgh, 1794, barometric, probably computed
by his own formula 584 3734
Humboldt, 1822, barometric, Laplace's formula 586 3747
]*
