DOCS. 340-342
JANUARY
1912 249
This
is
what,
for
example,
Sommerfeld
also
seems
to
do;
he starts
directly
from
the
Ģ
equation
=
const.
e
KTdE.-[3]
The
definitive calculation
of the
mol.
heat of
H2
N0
showed
that the
temperature
drop
is
even
somewhat
steeper
than
with
your
formula:
at
90°
up[wards]
the
value
is
3.27
cal.[4]
Yours
very truly,
A.
Eucken
341. From Robert Gnehm
[Zurich]
23
January
1912
Confidential.
To Professor
Dr. A.
Einstein
Prague
Dear
Sir:
I
am
pleased
to
be
able to inform
you
that
pursuant to
my
motion,
the
Swiss School
Council
decided
at yesterday's
meeting
to
propose
to
the Federal
Council
that
you
be
appointed
Professor of Theoretical
Physics
at
our
Polytechnical
Institute
on
the
terms
that
we
had
agreed
upon.[1]
As
soon as
the
matter is
formally
settled,
which should be in
about
14
days,
I will
again
be in
communication
with
you.
Respectfully,
The Chairman
of
the
Swiss
School Council
Dr R Gnehm
342. To
Paul Ehrenfest
[Prague,
26
January
1912]
Dear
Colleague Ehrenfest,
I
am
delighted
that
you
wish
to
visit
me.[1]
I
am
always
in
Prague,
so
that
you
will
surely
find
me.
If
you
intend
to
come
to
Prague
on
your return,
then
you
(and
your
wife)[2]
are cordially
invited
to
stay
with
me.
Unfortunately, at
the
moment
my
guestroom is
occupied.
With
best
regards
to
you, your wife,
& Prof.
Herglotz, your
Einstein