CALENDAR 1915 997
June
24
"Response
to
a
Paper by
M.
von
Laue:
‘A
Theorem in
Prob-
ability
Calculus and Its
Application
to
Radiation
Theory’"
(Vol.
6,
Doc.
18).
June
26
Envelope
addressed
"Herrn
P.
Habicht
Fulacherstr. Schaff-
hausen Schweiz." with
return
address "Abs. A. Einstein
Wittelsbacherstr.
13 Berlin.,"
and
postmarked
"Berlin-
Wilme[rsd]orf
1
26.6.15.12-1N[achmittags]."
Provenance:
Grace and C. John
Habicht, Neerach,
Switzerland.
[71
067].
June
28-July 5
Spends a
week in
Göttingen
to
give
six lectures
under
the
auspices
of
the Wolfskehl Foundation
on general relativity.
June 29 Lectures
"Über
Gravitation" to Mathematical
Society
of
Göttingen.
Provenance:
Jahresbericht der
Deutschen
Mathematiker-Vereinigung
24
(1915),
Part
2, p.
68.
1-page
DS. Bill
for
reimbursement
of
travel
expenses
incurred in
giving
lectures
in
Göttingen
the
same
week
(250
marks).
Provenance:
GyGöAW,
Etat
28,
Mappe 14,
p.
62.
[82
147].
July Envelope
addressed "Herrn Paul Habicht Fulacherstr.
Schaffhausen" with return address "Abs. A. Einstein
Wittelsbacherstr.
13 Berlin-Wilmersdorf,"
and
postmarked
"Berlin-Wilmersdorf
1
[-].[7].15.
2-3N[achmittags]."
Prov-
enance:
Grace and C. John
Habicht, Neerach,
Switzerland.
[71
068].
July
10
Observes
experiment
in Kiel
on stability
of
the
Sperry
com-
pass
in
the
dispute
between Anschütz and
Sperry compa-
nies.
July
15
Vacations
in
Sellin
(Rügen)
with
Berlin
relatives.
July
22 Returns
to
Berlin to attend
a
session
of
the
Academy.
July
24-August 5
Continues vacation in Sellin.
July
27
2-page
PTrL,
an open
letter to Chancellor Bethmann Holl-
weg opposing
annexationist
policy
advocated in the
so-
called
Seeberg
memorandum,
drawn
up by
Hans Delbrück
and Bernhard
Dernburg
and
signed by
Einstein and 90
others. Provenance:
Gy-Ar,
NL
199
Wehberg,
Nr.
14,
p.
131.
[75
052,
82
565].
August
7
"Supplementary Expert Opinion" on
Anschütz & Co.
vs.
Sperry Gyroscope Company
(Vol.
6,
Doc.
19).