Harry Inglis was something of a mapping genius. There is little to be found about him on Wikipedia or elsewhere, although his Contour Road Maps books (at first for cyclists and later adapted for early motor tourists) and his Graded Road Maps are plentiful on the secondhand market. This site has a scan of his Hill Path Contours booklet, which is one of Olde Graveller’s favourites.
Anyway, Harry’s paper The Roads That Led to Edinburgh (Proceedings of the Society of Antiquaries of Scotland. Harry Inglis, 1915) is 100 years old this year, and is of a quality and readability seldom approached and less often surpassed since. Ton up!