154
DOCS. 205-207
MAY 1910
205. To
Lucien Chavan
[Zurich,
6
May 1910]
Dear
Mr.
Chavan,
We
are leaving
here
tomorrow morning at
5,
so
that
we
will be in
Bern
at
about
8.
It would be
nicest
if
you came along
to
Neuchatel
to
the
physicists'
meeting.[1]
There
will
be
a
group
visit
to
a
factory
in
the
morning.[2]
In the
afternoon there
are
lectures.
Late
in
the
evening we can
then
travel
together
back to
Bern
or
do
whatever
we
want;
most
of
the
gentlemen
will
stay over on Sunday,
in
order
to
go
on an
excursion
together.[3]
With
best
regards to
you
and
your
wife,
your
A.
Einstein
[...][4]
We must
then
hurry
off
on
the next
train
for
Neuchatel.
206. To
Edgar
Meyer
[Zurich, 11 May 1910]
Dear
Mr.
M:
Of
course
you may give
an
account
of
the
state
of
affairs in
question
in
your article.[1]
I
remember
very clearly
that
you
had
already
indicated
your
plans to
me
earlier
(before
Christmas),
even
if
not
so definitely.
I
am looking
forward
very
much
to
the details of
this
investigation.
It
must
have
been
very
difficult
to
eliminate
the
secondary
effects.
With
best
regards,
yours truly,
A.
Einstein
207. To
Lucien Chavan
[Zurich,
14
May
1910][1]
I
was
very
pleased
with
your
letter.
I
also
tried
to
make
such
a
graphite
resistor,
but
I
was
not able to
exceed
10
mega-ohm.
I would be
very
grateful
if
you
could send
me
the resistor that
you
made.
Dr.
Greinacher,[2]
whose work focuses
on radioactivity,
tells
me
that, until
now, people
have
searched
in vain for
a
usable,
reasonably
constant
resistor of
this
order of
magnitude.
I have
one more
request. I
would like
to
have
four
telephones, two
with
horse-shoe
magnets,
and two with
bar
magnets.[3]
They
are
needed
for
teaching
and
experimental
purposes.[4]
Please
send
them
to
me
C.O.D. at
the
institute. I will then
try,
with
the assistant
Rusch,[5]
to
construct
an
acoustic
receiver
with