precedes it, nor does it merge with the appendix where it appears in the Contents. All this points towards the vital exposition of positive natural selection being added along with the errata, as an afterthought, and almost not making it into the book! Two sections are listed on the eighth page of Contents along with the appendices (referred to as Notes), the addendum ("Retrospective glance at our pages ...") and colophon (first part starts, "In taking a retrospective glance at our pages from the press ...", and second part starts, "Since this volume went to press ..."). Both are left aligned to correspond with the each appendix entry, but only the addendum is separated from the preceding text (Note F) by a sizeable line break. It is also marked by a spacer bar. The first and second parts of the colophon have double line breaks to separate them from the preceding section, while the second part of the colophon also has a spacer bar. The finishing touches must have included the eighth Contents page with the list of appendices, and at the same time, or even later, the entry for the addendum and the "Retrospective glance," both aligned equal to the appendix notes. Also added after the first instalment, the footer references to appendices A, B, C and E, on pages 2, 3, 4 and 135, respectively, as inferred by Matthew's colophon comments. It is notable that the footers are set in a different typeface to the main body text. The former is possibly Small Pica No.1, identified from the printer's catalogue, while the footers are in a reduced serif form, and at a slightly smaller size. There is kerning for the uppercase letters, in neither the body nor footer types. The title page is set in a mixture of title types that Neill & Co. offered: TWO-LINE RUBYON TWO-LINE LONGPRIMERNAVAL TIMBER TWO-LINE DIAMONDAND TWO-LINE BREVIERARBORICULTURE; etc. Argument for preconception The alignment of the addendum entry equal to the appendix notes on the Contents page, and the sense of post-production arising from Matthew's "Since this volume went to press" comment in the colophon, could be explained in two ways: that printing directions were lost or misunderstood between Black and Neill, or Matthew sent the new material directly to Neill with no printing directions. There doesn't seem another reasonable explanation for the addendum entry appearing as it does on the Contents