276
DOC.
28
SIMPLE
EXPERIMENT
Published
in
Deutsche
Physikalische Gesellschaft. Verhandlungen
18
(1916):
173-177. Lec-
ture
held
on
25
February
1916.
Published
15 April
1916.
[1]Einstein
and
De
Haas 1915a
(Doc.
13)
and Barnett 1915b. See also Einstein and De
Haas's earlier
acknowledgment
of Barnett's work
in
Einstein and De Haas 1915d
(Doc. 23)
and the discussion
in
the editorial
note,
"Einstein
on
Ampere's
Molecular
Currents,"
pp.
145-
149.
[2]The coils
are
denoted
by
E
in
the
figure.
[3]Wilhelm
Ludwig Jaeger
(1862-?)
was a
member of the
Physikalisch-Technische
Reichs-
anstalt.
[4]Ernst
Orlich
(1868-1935)
was
Professor of
Electrotechnology at
the Technische Hoch-
schule
in
Berlin-Charlottenburg
and
a
member of the
Physikalisch-Technische
Reichsanstalt.
[5]Einstein
mentions
having performed
the
experiment
himself
a
month earlier
(see
Einstein
to
Arnold
Sommerfeld,
8 February 1916).
Emil
Warburg
was
Director of the
Physikalisch-
Technische Reichsanstalt. The
experiment
is
also listed
in
the annual
report
for
1915
of the
Physikalisch-Technische
Reichsanstalt
(see
Zeitschrift für
Instrumentenkunde
36 (1916):
118).