l v i E DITORIAL METHOD
editorial comments precede the Einstein text and also serve to summarize the
content of a paper, lecture, address, or statement to which the Einstein text is a
response.
An English running head and a running page number appear above the rule on
every page of text. Numbers indicating editorial endnotes are presented in square
brackets in the margins of texts reproduced in facsimile, directly adjacent to the line
containing the passage or equation upon which the note comments. Annotation
begins after the last page of a facsimile text.
The texts presented in facsimile in the Writings volumes preserve all relevant
features of the original publication, including pagination, note placement, and run-
ning heads. Parts of texts not relevant to this edition but appearing on the same page
as text by Einstein are reproduced in lighter type. On the page preceding the text,
the reader will find the document number, English title, the document’s short title
from the list of Literature Cited, dates of completion, and the source for each text.
Republished versions of an Einstein text with revisions or annotations that may be
ascribed to Einstein are also noted on that page. Some of the information on the title
page is repeated in the unnumbered descriptive note at the end of the document.
Documents that have come to the attention of the editors after the publication of
the Correspondence volume in which they should have appeared are presented at
the front of a subsequent Correspondence volume. As mentioned in the Introduc-
tion, almost half of the documents published in the present volume pertain to the
years prior to May 1920. They originate primarily from Margot Einstein’s bequest
of family correspondence at the Albert Einstein Archives in Jerusalem that was
closed for twenty years after her death, and from the Heinrich Zangger manuscript
collection recently made available at the Central Library of Zurich.
Editorial endnotes, indicated by raised Arabic numerals enclosed in square
brackets, follow the text and description of the document. In some cases, notes are
printed at the foot of the corresponding page or as a running note facing the text in
order to maintain the coherence of each page.
Except in the case of published papers, the text is followed by a descriptive sym-
bol (see the list of Descriptive Symbols). If no provenance is specified, the source
is the Albert Einstein Archives at the Jewish National and University Library in
Jerusalem. Otherwise, the location of the original (in parentheses) follows the de-
scriptive symbol. If the location is unknown, the source of the photocopy or
transcript used is given. Symbols for documentary repositories follow the guide-
lines in The Library of Congress National Union Catalogue (see the list of Location
Symbols).
A descriptive note commenting on textual or physical characteristics of an orig-