of humans, speculating about changes in races due to migration. Note D is a short note on psychological dispositions. Note E attacks the thinking behind shipping tax. Note F is on the mud deposition or alluvium on the east coast of Britain. The biggest surprise comes after the end of the main text and after the end of the appendix containing this list of long endnotes, the end is still not reached. Instead, a horizontal line occurs, after which the text continues, without a heading or anything explaining what is to be expected. The appendix has an appendix! As a late addition, it could be called an addendum (pp. 381–388). This easily overlooked addendum is of course where Matthew combined the old ideas of natural selection and species transmutation in a hitherto unheard of way. The addendum is followed by a "Retrospective glance at our pages" (pp. 388–390) discussing the book's production, by a colophon (pp. 390–391) mentioning changes in the political scenery of Europe and the implications for the book's main topic of naval timber and rural affairs, and finally by an erratum. Unlike the endnotes, however, these various additions are not referred to anywhere in the main body of the book. The table of contents, however, lists the addendum and the retrospective glace as "Accommodation of organized life to circumstances, by diverging ramifications, ... 381" and "Retrospective glance at our pages, ... 388" respectively. These are not indented but aligned equal to the appendix Notes A to F, in the table of contents, showing that they are not sub-sections of Note F. The thematic break and the double horizontal line between Note F and the addendum at page 381 corroborate this. There are other elements to the book which are intriguing and mysterious. They require careful analysis, to piece together a likely sequence of events that led to production of the final version. Luckily Matthew is quite informative and open about the events occurring simultaneous to his writing, and that he found them to be of such considerable importance that not only did they distract his attention so he completely forgot about his book sitting with the printers, but they also had consequence for the relevancy of some of his ideas already committed to the page. In response to certain events, Matthew clearly added sections, marked by his introductory statements, such as, "Since writing the above ...", "Since