262 DOC. 26
THEORY
OF
TETRODE AND
SACKUR
[12]"Zuständen"
should be "Gebieten."
[13]At
this
point
in
the
original text
Einstein indicates
a
note
he has
appended at
the foot of
the
page:
"In dieser Formel ist
n
die Zahl der
Freiheitsgrade
des
Systems,
welche
angenommen
werden
müssen,
um
das
thatsächliche thermische Verhalten
des
Systems
in
dem betreffenden
normalen Gebiete darzustellen.
(An
die Stelle des
Phasenintegrals
über einen
"schlafenden"
Freiheitsgrade
hat offenbar der Wert
e-E/O
zu
treten;
dies ist insbesondere für den Fall
im
Auge
zu
behalten, in
dem das
System
nur
"schlafende"
Freiheitsgrade
hat
(beim
absoluten Null-
punkt)
Denn
es
ist
klar,)."
[14]in
the
exponent
in the
integrand
should be "E."
[15]v
in
the
equation
below
is
the
frequency
of the oscillator.
[16]"dividiert"
should
be "multipliziert."
[17]See
also the related discussion
in
Einstein
1914n
(Doc.
5), §2,
and the
correspondence
on
this
topic
with Otto Stern
in
February-March
1916.
[18]Einstein's
results for the
quantities
I
are
in
accordance with the
ones
derived
in Tetrode
1915. See also Max Planck
to
Einstein,
7
November
1915,
and Planck 1915 for
a
different der-
ivation of the
same
results.
[19]"3,"
"5," and
"6" should be
"3/2," "5/2,"
and
"3,"
respectively.