Conversation - 2 - Experience Is Primal
Spencer Heath Archive Item 2 Verbatim pencil note by Spencer MacCallum from conversation with Heath…
Subject - 43 - The Principle Of Discontinuity
Spencer Heath Archive Items 43 and 43a April 1961? Original contains more material, mostly…
Conversation - 236 - Everything In Nature Goes By Unities
Spencer Heath Archives Item 236 Taping by Spencer MacCallum from conversation with Heath, typed onto…
Conversation - 243 - Nature Knows No Zeros
Spencer Heath Archive Item 243 Fragmentary taping by Spencer MacCallum from conversation with Heath, transcribed…
Subject - 263 - Science And The Quantum
Spencer Heath Archive Item 263 Pencil notes inserted in Hans Reichenbach, Atom & Cosmos February…
Conversation - 426 - Linguistic Evidence For Rationality In The Cosmos
Spencer Heath Archive Item 426 Random taping by Spencer MacCallum from conversation with Heath. No…
Conversation - 429 - The Human Significance Of Nature'S Rationality
Spencer Heath Archive Item 429 Taping by Spencer MacCallum from conversation with Heath 1954-1955? …
Conversation - 623
Spencer Heath Archive Item 623 Taping by Spencer MacCallum of remarks by Heath at the…
Conversation - 687 - Unity With The Creative Principle In Nature
Spencer Heath Archive Item 687 Random taping by Spencer MacCallum from conversation March 1956 …
Conversation - 833
Spencer Heath Archive Item 833 Verbatim pencil note by Spencer MacCallum of a remark by…