Volume III (1904) is (ca 2016 October) in preparation at Project
Gutenberg Distributed Proofreaders. Volume III contains an index for all three volumes. Original page scans are available from archive.org.
Original spelling and grammar are generally retained, with a few exceptions noted below. Original italics _look like this_. Footnotes were renumbered 1–60, changed to endnotes, and moved to the ends of the appropriate essays. Original printed page numbers look like this: {35}.
Page 84. Table I, originally printed on an unnumbered page between pages 84 and 85, has been moved to page 85, and recast as a nested list so as to function well in ebook format. In particular, large curly brackets “{” intended to combine information on more than one line have been eliminated. Table II, printed between pages 88 and 89 has been treated similarly, and moved to page 88. Table III, printed between pages 92 and 93 has been moved to page 92 and treated similarly.
Page 125–130. In the comparison of Compte’s and Spencer’s propositions, the two columns of the table were rewrapped into equal widths, to fit a 72 character limit per line. This removes the original printed line per line correspondence, if any such was implied, but the original arrangement of the paragraphs is retained. The table of paragraphs on pp. 131–132 was treated in the same way. On page 126, the phrase “est essentiellement différent même radicalement opposé”, clearly missing something in the original printed book, was changed to “est essentiellement différent et même radicalement opposé”.
Page 192. The large white spaces in the clause “Space is either or is ;” are retained from the printed book.