x l v i i i
SzGB Besso Family Trust, Geneva, Switzerland
SzGBod Bibliotheca Bodmeriana, Geneva, Switzerland
SzZE Eidgenössische Technische Hochschule, Zurich,
Switzerland
SzZU Archiv der Universität Zürich, Zurich, Switzerland
TAU Harry Ransom Humanities Research Center, University of
Texas, Austin
WyUAHC American Historical Center, University of Wyoming,
Cheyenne, Wyoming
AD Autograph Document
ADS Autograph Document Signed
ADft Autograph Draft
ADftS Autograph Draft Signed
TD Typed Document
TTrD Typed Transcript of a Document
D E S C R I PT I V E S Y M B O L S
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