DOCUMENTS
580, 581
JULY 1918 825
lectures in Princeton in
1921,
Einstein
praised Weyl’s
method
as "particularly
elegant" ("besonders
elegant";
Einstein
1922a, p. 60).
[5]See
Doc.
472, note
3,
for
a description
of
Weyl’s interpretation
of
the
electromagnetic
field in
the
context
of
his
generalization
of
Riemannian
geometry
in
Weyl
1918b.
[6]The
affine connection in
Weyl’s theory,
and hence
some
force
terms
in the
geodesic equation,
depend
both
on
the metric field and the
electromagnetic
four-vector
potential
(Weyl
1918b,
p. 469).
This
same argument can
be found in Doc.
565,
where
Einstein
made
more explicit
that he
saw
it
as
an important new argument against Weyl’s theory.
[7]Friede
Niemann-Konow.
580.
To
Max Born
[Ahrenshoop,
after
3
July
1918][1]
Lieber Born!
Dies fidele Bekenntnis
einer
schönen,
auf
Stelzen
geborenen
Seele
zu
Euerer Er-
bauung.
Da
ist süss
sterben,........[2]
Wir sind dauernd
vergnügt
und
vegetieren
wie
richtige Taugenichtse.
Auf
ver-
gnügtes
Wiedersehen.
Euer
Einstein.
Auch Wertheimer[3]
zeigen!
ALS
(GyB,
Nachl.
Born,
no.
188,
p.
1). [8
135].
Written
at
the
margin
of
a
deleted TLS from Theodor
Lewald,
President
of
the
board
of
trustees
(Kuratorium)
of
the
Physikalisch-Technische
Reichs-
anstalt, 3
July
1918, to the
members
of
the
board
[8
135],
of
which Einstein
was one.
On the
verso
is
a typed
transcript
of
Ellen
von
Siemens-Helmholtz to
Theodor
Lewald,
27
May
1918
[8
134].
[1]Dated
by
the fact
that
this
document
was
written
at
the
margin
of
a
document
dated
3
July
1918.
[2]The
reference
to
the Latin
phrase
that "it is
sweet
and
proper to
die for one’s
country" (Cicero,
On Divination,
Book
III)
is elicited
by
the
purple patriotic prose
of
Ellen
von
Siemens-Helmholtz
(1864-1941),
who thanked
Theodor
Lewald
(1860-1947)
for
his words
of
condolence
on
the
death
of
her
husband,
Arnold
von
Siemens
(1853-1918),
a colleague
of
Einstein
on
the board.
At the foot
of
the
transcribed
letter from
Siemens-Helmholtz,
Einstein has added:
"Für
die
banausische
Nachwelt
aufzubewahren!"
[3]Max
Wertheimer
(1880-1943)
was
Professor
of
Psychology
at
the
University
of
Berlin.
581. From Felix Klein
Göttingen
5. Juli 1918.
Verehrter
Hr.
Kollege!
Ich muß Ihnen noch über meinen
Montagsvortrag
schreiben.[1] Ich habe den
von
Ihnen
in
Aussicht
genommenen
Beweis:[2] dass die
Ja
einen
kontragredienten
Vektor
bilden,
unter der beschränkenden Annahme
durchgeführt,
dass
die
Weltröh–