Transcriber's Notes
Changes made to the text (in the case of typographical errors) are as follows:
Page [66]: added missing semi-colon ("... terminated in the fore part by the plough-share; ...")
Page [83]: changed "grea" to "great" ( ... except the perfect flatness and great breadth of the surface of each, ...)
Page [158] (Footnote [36]) changed period to comma after page reference (... see p. 130, that "it was a trifle not worth thinking about.")
Page [167] deleted spurious apostrophe after "winter" (... that they might have a supply of it during the winter frosts?)
Page [192] changed "Where-ever" to "Wherever" (Wherever these hillocks abounded, ...)