EDITORIAL METHOD xli TRANSCRIPTION In cases where the author has used an almost shorthand form to designate the endings "ung" and "ungen," the material is transcribed in its full form. This authorial convention is not an abbreviation but an idiosyncratic rendering which would prove confusing if allowed to stand as is. The use of "J" for "I" in typed originals or transcriptions is rendered in modern usage. ANNOTATION Where reference is made to a letter or document and the location of the orig- inal is unknown, the citation refers to a version or copy in the Albert Einstein Archives and is accompanied by the control number that is assigned to it there. The surnames of certain persons who figured prominently in Einstein's life are printed in small capital letters in all editorial matter in a given Correspondence volume to indicate that short accounts of their lives are in- cluded in the Biographies that appear in the back matter.