Fraehn, fall of stars, 119.
Franklin, Benjamin, existence of sandbanks indicated by the coldness of the water over them, 308.
Franklin, Capt., on the Aurora, 197, 199, 200, 201; rarity of electric explosions in high northern regions, 337.
Freycinet, pendulum oscillations, 166.
Fusinieri on meteoric masses, 123.
Galileo, 104, 167.
Galle, Dr., 91.
Galvant, Aloysio, accidental discovery of galvanism, 52.
Gaseous emanations, fluids, mud, and molten earth, 217, 220.
Gasparin, distribution of the quantity of rain in Central Europe, 333.