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281
Heroes of the Telegraph
·
John Munro
221
After
1878
Edison
became
too
much
engaged
with
the
development
of
the
electric
light
to
give
much
attention
to
the
phonograph,
which,
however,
was
not
entirely
overlooked.
His
laboratory
at
Menlo
Park,
New
Jersey,
where
the
original
experiments
were
made,
was
turned
into
a
factory
for
making
electric
light
machinery,
and
Edison
removed
to
New
York
until
his
new
laboratory
at
Orange,
New
Jersey,
was
completed.
Of
late
he
has
occupied
the
latter
premises,
and
improved
the
phonograph
so
far
that
it
is
now
a
serviceable
instrument.
In
one
of
his
1878
patents,
the
use
of
wax
to
take
the
records
in
place
of
tinfoil
is
indicated,
and
it
is
chiefly
to
the
adoption
of
this
material
that
the
success
of
the
'perfected
phonograph'
is
due.
Wax
is
also
employed
in
the
'graphophone'
of
Mr.
Tainter
and
Professor
Bell,
which
is
merely
a
phonograph
under
another
name.
Numerous
experiments
have
been
made
by
Edison
to
find
the
bees-wax
which
is
best
adapted
to
receive
the
record,
and
he
has
recently
discovered
a
new
material
or
mixture
which
is
stated
to
yield
better
results
than
white
wax.
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