950 DOCUMENTS 658, 659 NOVEMBER 1918
can
rewrite the left-hand side
of
this
equation as
mgij
(duJ
ds
j/aß
uauß).
The
expression
in
paren-
theses is
just
the left-hand side
of
the
geodesic equation.
The
equation
of
motion in
Weyl’s
theory-
for
a
particular
Lagrangian
and in
a
particular
gauge-is thus
just
the
equation
of
motion in
ordinary
general relativity
for
a charged particle
in
an
external
electromagnetic
field.
[4]Weyl
1918b. See Doc. 512 for
an
account
of
the difficulties Einstein
experienced
in
submitting
the
paper to
the Prussian
Academy.
[5]Weyl
1918c.
[6]Einstein had written
a glowing
review
of
Weyl’s
book
for
Die
Naturwissenschaften
(Einstein
1918j [Vol.
7,
Doc.
10]).
[7]Weyl
1919a.
[8]Weyl
had
made several last-minute
changes
in the final section
on cosmology
in the
proofs
of
Weyl
1918c in
response
to criticism
by
Einstein
(see
Docs. 525 and
544).
[9]Weyl
1919d. Instead
of
a major
revision
of
the section
on cosmology, Weyl
would
essentially
refer
the
reader
to
Weyl
1919b,
which
gives a
detailed
exposition
of
the results first
reported
in
Doc. 544
(the
section
on cosmology
was
expanded
in
subsequent editions).
For discussion
of
other
changes
in the revised edition
of
Weyl’s
book,
see
Doc.
669,
note 5.
[10]For a
series
of
lectures
(see
Doc.
647).
658.
To
Arnold
Berliner
[Berlin,
before
19
November
1918][1]
Lieber
Herr
Berliner!
Über Nordstrom will ich
gern
referieren.[2]
Die
Figuren
sind
nicht
zutreffend.
Ich skizziere die
richtigen Figuren
mit der
Bitte,
sie den beiden
Spalten
einzuver-
leiben,
in denen die beiden
Darstellungen
des
Uhrenparadoxons
beschrieben
sind.[3]
Es
grüsst
Sie bestens Ihr
A. Einstein.
Facsimile
of
ALS
(Karl
und Faber
dealer
catalogue
99
[25-26
January 1966],
lot
2103). [76 938.1].
[1]The
recipient
has
stamped
"19. NOV. 1918"
on
the document.
[2]One
or
several
of
Gunnar Nordstrom’s latest
papers on general relativity (Nordstrom
1918a,
1918b, 1918c).
[3]Einstein refers to the
figures
in Einstein 1918k
(Vol. 7,
Doc.
14),
which
was
published
29 No-
vember in Die
Naturwissenchaften,
of
which
Berliner
was
the editor.
659. From Paul
Bernays
Göttingen, Nikolausbergerweg
43. 22. XI.
18.
Sehr
geehrter
Herr Professor!
Haben Sie vielen
Dank
für
Ihr
freundliches Antwort-Schreiben! Eine
so
einge-
hende
Erwiderung
hatte ich in
Anbetracht
meiner
zu
ungenauen Argumentation
kaum
verdient.[1]