C H R O N O L O G Y , 1 9 1 2 1 9 3
Feb 3 Petitions Minister of Education for release from position at
German University as of 30 September.
Feb 23 Has first meeting with P. Ehrenfest.
Feb 26 “The Speed of Light and the Statics of the Gravitational
Field” (Vol. 4, Doc. 3).
Mar 23 “On the Theory of the Static Gravitational Field”
(Vol. 4, Doc. 4).
Mar 28 Winter semester at the German University ends.
Apr 11 Summer semester at the German University begins. Einstein
teaches courses in the mechanics of continua and the molec-
ular theory of heat, and conducts seminar discussions.
Apr 15–22 Visits W. Nernst, F. Haber, E. Warburg, H. Rubens, and E.
Freundlich in Berlin. Discusses scientific matters with them,
and considers a position at the Physikalisch-Technische
Reichsanstalt (which he will decline). Also visits his aunt
and uncle, Fanny and Rudolf Einstein, at whose residence in
Haberlandstr. he becomes reacquainted with his cousin Elsa
Löwenthal (née Einstein).
May 12 “Supplement to My Paper: ‘Thermodynamic Proof of the
Law of Photochemical Equivalence’” (Vol. 4, Doc. 5).
May 23 “Note Added in Proof” (Vol. 4, Doc. 4).
May 30 “Response to a Comment by J. Stark: ‘On an Application of
Planck’s Fundamental Law . . .’” (Vol. 4, Doc. 6).
Jun 1 Is released from his position at the German University as of
the end of September.
July “Is There a Gravitational Effect Which Is Analogous to
Electrodynamic Induction?” (Vol. 4, Doc. 7).
Jul 4 “Relativity and Gravitation. Reply to a Comment by M.
Abraham” (Vol. 4, Doc. 8).
Jul 25 Departs Prague for Zurich to take up position at the ETH.
Jul 31 Summer semester at German University ends.
ca. Aug Begins research notes on a generalized theory of relativity
(Vol. 4, Doc. 10) and, probably at the same time, his collab-
oration with M. Grossmann.
ca. Aug 1 Einstein and others call for the creation of a Society for Pos-
itivistic Philosophy.