line, supposed to be drawn through the centre of the earth;
or when applied to the heavens, the two points directly over
them.


Is ice the only instance of Water existing in a state of solidity?

No; it is found in a solid state in many minerals, as in marble, &c.,
and is then called _water of Crystallization_. It is essential, in
many cases, to their solidity and transparency.

_Essential_, necessary.

_Transparency_, clearness, the power of transmitting light.


Does Nature decompose Water in any of her operations?

Yes: every living vegetable has the power of decomposing water, by a
secret process peculiar to itself. Fish, too, and all cold-blooded
amphibious animals are gifted with the same power.

_Decomposing_, separating a mixed body into its several
parts.

_Amphibious_, able to live both in water and out of it.


Of what use is this power to vegetables?