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Updated: June 3, 2025


Humboldt extends this view to the case of earthquakes unaccompanied by eruptions; but I can hardly conceive it possible that the small quantity of aeriform fluids which then escape from the fissured ground can produce such remarkable effects. There appears much probability in the view first proposed by Mr.

The water absorbed by the plant evaporating in an aeriform state leaves the saline and other mineral constituents within it.

"Almost every known body in nature is susceptible of three several states of existence, the solid, the liquid, the aeriform. These conditions depend on the quantity of heat they contain. The same object at one moment may be liquid; at the next moment solid; at the next aeriform. The water that flows before your gaze may stop consolidated into ice, or ascend into air as a vapour.

Of particular interest in this connection is the circumstance that carbonic oxide is one of the gases evolved by meteoric stones and irons under stress of heat. For it must apparently have formed part of an aeriform mass in which they were immersed at an earlier stage of their history. In a few exceptional comets the usual carbon-bands have been missed.

Of the former process, by which matter is carried from its gravity-bound to its gravity-free condition, we know that it takes place in three stages, of which the first implies the lifting of matter from the solid to the liquid condition, the second from the liquid to the aeriform condition, and the third to the condition of pure heat.

It is obvious, therefore, that the maggots are not generated by the corruption of the meat; and that the cause of their formation must be a something which is kept away by gauze. But gauze will not keep away aëriform bodies, or fluids. This something must, therefore, exist in the form of solid particles too big to get through the gauze.

If we consider what must have been the state of things here, when the surface of the Earth was molten, we shall see that round the still molten surface of the Sun, there probably exists a stratum of dense aeriform matter, made up of sublimed metals and metallic compounds, and above this a stratum of comparatively rare medium analogous to air. What now will happen with these two strata?

Something like a delicate fertilization then takes place between the human soul and the bodily embryo. The souls thus embodied now begin once more to attract the aeriform and watery substances and incorporate them in their own bodies. Air is expelled and absorbed by the organized body,—the first beginning of that which later appears as the respiratory process.

Humboldt extends this view to the case of earthquakes unaccompanied by eruptions; but I can hardly conceive it possible, that the small quantity of aeriform fluids which then escape from the fissured ground, can produce such remarkable effects. There appears much probability in the view first proposed by Mr.

Air, water, and fire were still counted among the elemental bodies; and though Van Helmont, a century before, had distinguished different kinds of air as gas ventosum and gas sylvestre, and Boyle and Hales had experimentally defined the physical properties of air, and discriminated some of the various kinds of aeriform bodies, no one suspected the existence of the numerous totally distinct gaseous elements which are now known, or dreamed that the air we breathe and the water we drink are compounds of gaseous elements.

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