Draft with handwritten emendations. Some of the chapters mentioned would later be published in Essays in Science and Philosophy in 1947. Apparently Whitehead's first Harvard lecture was set to be published in this book, but was later excluded from it (see the strikeout at the bottom of page 2).
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Whitehead's Lost Papers
Document Item Type Metadata
Whitehead, Alfred North, "Unpublished book preface," DOC174, Whitehead Research Library, accessed October 24, 2020, http://wrl.whiteheadresearch.org/items/show/2143.