In all of which there is not only a considerable high Hill raised
about the mouth of the _Vulcan_, but, like the spots of the Moon, the top
of those Hills are like a dish, or bason. And indeed, if one attentively
consider the nature of the thing, one may find sufficient reason to judge,
that it cannot be otherwise; for these eruptions, whether of fire, or
smoak, alwayes raysing great quantities of Earth before them, must
necessarily, by the fall of those parts on either side, raise very
considerable heaps.
Now, both from the figures of them, and from several other circumstances;
these pits in the Moon seem to have been generated much after the same
manner that the holes in Alabaster, and the _Vulcans_ of the Earth are
made. For first, it is not improbable, but that the substance of the Moon
may be very much like that of our Earth, that is, may consist of an earthy,
sandy, or rocky substance, in several of its superficial parts, which parts
being agitated, undermin'd, or heav'd up, by eruptions of vapours, may
naturally be thrown into the same kind of figured holes, as the small dust,
or powder of Alabaster. Next, it is not improbable, but that there may be
generated, within the body of the Moon, divers such kind of internal fires
and heats, as may produce such Exhalations; for since we can plainly enough
discover with a _Telescope_, that there are multitudes of such kind of
eruptions in the body of the Sun it self, which is accounted the most noble
AEtherial body, certainly we need not be much scandaliz'd at such kind of
alterations, or corruptions, in the body of this lower and less
considerable part of the universe, the Moon, which is only secundary, or
attendant, on the bigger, and more considerable body of the Earth.
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