132 DOCUMENT 114 AUGUST 1908
den nächsten
Tagen
schon soll
es
fertig
werden. Ich will selbst
sehen,
was es
leisten
kann,
und
was an
den Gerüchten
von
der Tücke
des
Kontaktes
Wahres
ist.
Seien
Sie
bestens
gegrüsst
von
Ihrem
A.
Einstein
und lassen
Sie
recht bald wieder
was von
sich hören.
TTrL
(SzZE Bibliothek, Hs. 304:53).
[15
523].
Transcribed
by
the
recipient.
[1]Wilhelm Wien.
[2]Perhaps
a
reference
to
the
planned experiment
with ultraviolet
light
that
is
mentioned in
Doc.
101.
[3]The paper is
Laub
1908b. See
Doc.
102,
note 5
for
an
earlier reference
to
this
paper.
[4]Mürren (1636
m)
and Isenfluh
(1098
m).
[5]A
position at
the
University
of Zurich
(see
Doc.
92).
[6]Max
Seddig (1877-1963)
was
Privatdozent in
physics at
the
University
of
Marburg.
The
paper
is
Seddig
1908a
or
1908b.
He
had
experimentally investigated
the
temperature depen-
dence of Brownian motion and found
qualitative agreement
with Einstein's
theory.
See
Vol.
2,
the editorial
note,
"Einstein
on
Brownian
Motion,"
p.
220,
for
more
details.
[7]In
the
previous year
Christian Fuchtbauer had
published
on
secondary rays
(Füchtbauer
1907).
[8]Friedrich
Harms.
His
work
is
mentioned
in
Doc.
101.
[9]See Doc.
103
for Laub's
account
of
an
objection
by
Wilhelm Wien
to
the
expressions
for
ponderomotive
forces derived
by
Einstein
and
Laub.
[10]Matthias Cantor.
[11]The principle
of the
equality
of action and reaction
played
a
central role in Einstein's
and
Laub's work
on
ponderomotive
forces
(see
Einstein and Laub 1908b
[Vol. 2,
Doc.
52],
pp.
547-550).
It
was
also used
by
Einstein
in
Einstein 1910c
(Vol. 3,
Doc.
6),
which deals with
ponderomotive
forces
as
well
(see
Doc. 224 for
more on
that
paper
and another affirmation
of
the
importance
of the reaction
principle).
[12]Perhaps
Rudolf
Gasser,
whom his brother Adolf
Gasser
had recommended
to
Einstein
at
the
beginning
of the
year
(see
Doc.
74). See
also the editorial
note,
"Einstein's
'Maschinchen' for the Measurement of Small
Quantities
of
Electricity," pp.
51-55.
114. To
Lucien and Jeanne
Chavan-Perrin[1]
[Murren, 13 August
1908]
Herzliche Grüsse
aus
den Ferien sendet Ihnen die Familie
Einstein.
AKS (Sz,
Archiv der
Einstein-Gesellschaft).
[72 267].
The
postcard
is
addressed "Herrn
L.
Chavan
&
Frau Beundenfeldstr.
Bern," and postmarked
"Mürren 13.VIII.08.VI."
[1]Jeanne Chavan-Perrin
(1866-1958).
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