Correspondence - 10 - Non-Euclidean Geometry
Spencer Heath Archive Item 10 Penned letter from Heath to Laura Jean McAdams, Durham NC,…
Subject - 62 - The Geometry Of Events
Spencer Heath Archive Item 62 Penciled by Heath on notepad paper. Includes several figures No…
Correspondence - 101
Spencer Heath Archives Item 101 Penned letter on Carolina Inn, Chapel Hill, N.C. letterhead from…
Conversation - 205 - Geometry And Reality
Spencer Heath Archive Item 205 Verbatim note by Spencer MacCallum from conversation with Heath, New…
Conversation - 215
Spencer Heath Archive Item 215 Taping by Spencer MacCallum from conversation with Heath at Elkridge…
Conversation - 403 - Geometry And Reality
Spencer Heath Archive Item 403 Random taping by Spencer MacCallum during conversation with Heath in…
Conversation - 674
Spencer Heath Archive Item 674 Note, not necessarily verbatim, by Spencer MacCallum from conversation with…
Subject - 680
Spencer Heath Archive Item 680 No date Our thinking about lines, figures,…
Conversation - 689 - Abstracting From Physical Reality
Spencer Heath Archive Item 689 Taping BY Spencer MacCallum during conversation with Heath. May 28,…
Correspondence - 1556
Spencer Heath Archive Item 1556 Carbon of letter from Heath to Edward McCrady, University…