Observations on the temple of Serapis at Pozzuoli near Naples : with an attempt to explain the causes of the frequent elevation and depression of large portions of the earth's surface in remote periods and to prove that those causes continue in action at the present time : with a supplement of Conjectures on the physical condition of the surface of the moon (1847)
of the liquid matter might proceed from these melted beds, both upwards and down- Fig. 5. wards. If, on the contrary, older dykes had penetrated all the strata, it is possible to suppose such a degree of fusibility in the older dyke, or such chemical relation to the melted bed, that the portions of… … 92. Another consequence of this constant change in the position of the isothermal surfaces must be the development of thermo-elec¬ tricity, which, acting on an immense scale, may determine the melt¬ ing of some beds, or the combination of the melted masses of others, or cause the segregation of…
