334
DOCS. 438-441
APRIL-MAY
1913
With all
respect,
sincerely yours,
A.
Einstein
Polytechnical
Institute
Zurich
439. To Conrad Habicht
[Zurich,
3
May
1913
or
after][1]
Dear
Konrad,
Here
is
the Händel for
tomorrow
(Sunday) evening.
If
you
cannot
or
do
not wish
to
come, please
suggest
another
evening.
Our
polar bear[2]
will be available.
Of
course,
your
wife
and
Paul[3]
are
also
very
welcome.
Best
wishes, your
St[eiss]
B[ein]
(Rebus
from
the olden
times)[4]
Please
bring along
again
the
carton because
a
photograph is
usually
lodged
in
it.
440. To
Alexander
Witting
Zurich,
24
May
[1913][1]
Dear
Sir:[2]
You
requested
that
I
send
my
manuscript
of the
lecture
on
gravitation
that
I will
deliver
at
the
Naturforscherversammlung
in
Vienna.[3] I
believe
that
it will
probably
be
possible
for
me
to
send
the
manuscript
before
1 August.[4]
Respectfully,
A.
Einstein
Zurich
441.
To
Paul
Ehrenfest
Zurich,
28
May
[1913][1]
Dear
Mr.
Ehrenfest:
I
stare
with
a
pounding
heart
at this little
sheet
of
paper
intended for
you, aware
of
my
great
delay
in
answering your
letter.
But
my
excuse
is
the
frankly
superhuman
effort
I
have invested
in
the
gravitation problem.
I
am now
deeply
convinced
that
I have
gotten
the
thing right,
and
also,
of
course,
that
a
murmur
of
indignation
will
spread