306
DOCS.
404,
405
JUNE
1912
·-
incident
light propagat.
at
c
+
v
light source moving w.
vel.
v
resting
mirror
inclined
45°
normal
vel.
c!
For
if the law refl.A.
=
incid.
A.
would
hold,
then the
times
that the
two
rays
between
the
planes
E1
and
E2
would
not
be
equal,
as
should be
the
case
according
to
Huygens's
principle.
The
angle
of reflection
would have to
depend
on v,
since
the reflected
light
propagates
with
the
veloc.
c.
Please
tell
me
in
greater
detail what
Weiss
wrote to
you.
I
need
a
clear
picture
about the
matter.
With
the best
regards
from
my family
to
yours,
Einstein
I
just
noticed that the letter
in
question
was
Weiss's old
letter.[7]
My
interpretation
was
therefore
wrong.
But
since
you
have
already accepted
Sommerfeld's
offer,
and
rightly
so,
it
is pointless to
delve into this business
any
further.
I
too
am very
sorry
that
I
will not be
working
with
you.
405.
From
Alfred
Stern
Zurich
V, 5
June
1912
Dear
Professor
Einstein,
I
am
sending
you by
bookpost
the
N.
Zürcher
Zeitung
with Prof. Weiss's
eulogy
for
Weber,
which will
surely
interest
you. Weber,
whom
I
have known since 1869
(from
Karlsruhe),
succumbed to
a
stroke.
May
this
possibly
have
an
influence
on
your job
here?-We
are
delighted
that
we
will
see you
here
soon
with
your
wife and
the
two
baby-
bears. We found
your
letter of
17
March,
for
which
I
should have
thanked
you
a
long