354
DOCS. 472-474 AUGUST-SEPTEMBER
1913
I
am
also
very
curious about the results of
your investigations
on
double
stars.[5]
If
the
speed
of
light
depends
even
in
the least
on
the
speed
of the
light
source,
then
my
whole
theory
of
relativity, including
the
theory
of
gravitation,
is
wrong.
I
am
delighted
that
I will
see
you
on
your
honeymoon.[6]
I will be
here
till mid-
September,
except
for
September 7 &
8,
when
I have to deliver
a
lecture
in Frauenfeld.[7]
Write
me as soon as possible
in
greater
detail
when it
is
that
you
are
coming
to
Switzerland
and
how
we can
meet.
Of
course,
it would
please
me
the
most if I could
welcome
you
here.
With best
regards
and best
wishes
on
your
marriage,
yours,
A.
Einstein
Many
thanks for
your congratulations.[8]
473. To
Conrad
Habicht
[Zurich,
7
September
1913]
Dear
Konrad,
We will
arrive
in
Schiers[1]
on
Wednesday
the
9th at
10
o'clock. But I
doubt that
you
could show
us
something
more
paradisiacal
than
our
menage
at Tillierstrasse.[2]
Until
then,
yours,
Einstein
&
Wife
474.
To
Heinrich
Zangger
[Kac] Saturday
[20
September
1913]
Dear
Mr.
Zangger,
We have
been
staying
here
since
Monday
in bucolic
tranquility
at
my
in-laws.[1]
The
journey
was
smooth but
tiring.
It's
terribly
hot here. One
does not
see
any sign
of
cholera. Tomorrow I'll
leave with
my
wife
for
Vienna.[2]
Tuesday
I
must
perform
my
trapeze
act.[3]
After that
I
will visit several
relatives
in
Germany,[4]
and I'll
be back in
Zurich
at
the
beginning
of October.
Wishing you good
health
and
with
kindest
regards
to
you
and
your
family, yours,
Einstein
[
...
][5]