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177
The Story of Alchemy and the Beginnings of Chemistry
·
M. M. Pattison Muir
150
CHAPTER
XIV.
THE
MODERN
FORM
OF
THE
ALCHEMICAL
QUEST
OF
THE
ONE
THING.
The
study
of
the
properties
of
the
elements
shows
that
these
substances
fall
into
groups,
the
members
of
each
of
which
are
like
one
another,
and
form
compounds
which
are
similar.
The
examination
of
the
properties
and
compositions
of
compounds
has
shown
that
similarity
of
properties
is
always
accompanied
by
similarity
of
composition.
Hence,
the
fact
that
certain
elements
are
very
closely
allied
in
their
properties
suggests
that
these
elements
may
also
be
allied
in
their
composition.
Now,
to
speak
of
the
composition
of
an
element
is
to
think
of
the
element
as
formed
by
the
union
of
at
least
two
different
substances;
it
implies
the
supposition
that
some
elements
at
any
rate
are
really
compounds.
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