of the same block of eight pages be printed for the entire print run of 200 copies, according to imposition, but the same marks do not show up in other copies of the book, for example, the one at Harvard University, or the two copies at the National Library of Scotland in Edinburgh. Ultimately, taking the mirror image of the page, in order to make the marks more legible, the type can be seen to match the text on the other side of each page. The marks are therefore an artefact of the scanning process, and not inherent to the book. Final instalment Ergo, the indications are that Matthew constructed the book iteratively, producing this third instalment, that includes the evolutionary exposition (p. 381), plus a further colophon ("In taking a retrospective glance at our pages ..." p. 388) that provides a better description of the technique to produce "knees" from split stems and roots. He also mentions his oversight of omitting instructions for bending planks, but then informs the reader that nature mostly takes care of that anyway (p. 390). The final sentence in that section is another one of those potential sources for confusion, as it states, "We regret that our allusion to the lamented Mr Huskisson was printed off before we knew of his death". This comment supports the retrospection in other sections that further implies later additions to the book. Seeking out Huskisson's earlier mention, he appears in passing within the section Concerning Our Marine (in Part III: Miscellaneous Matter Connected With Naval Timber, p. 130), "Can it be believed that our very liberal late minister (Mr Huskisson), and our very non-liberal member for Newark (Mr Sadler), have both made a full exposè of the distresses of our shipping interest ..." (p. 136). To avoid misunderstanding, "late" is used here not in reference to no longer being alive, but rather to no longer having his role in government: he resigned in this case. It was in particularly frequent use during 1830 in the context of the aftermath of the July Revolution in France; for example, an editorial in the Perthshire Courier of 2 September 1830 remarked "To appease the popular fury, it is almost certain that the lives of some of the late Ministers are to be sacrificed". The very last section of colophon follows a bar and line break ("Since this volume went to press").