Three Men in a Boat (to say nothing of the dog) - chapter 18 — http://thames.me.uk/s01569.htm#top —https://en.wikipedia.org/wiki/Lock_(water_navigation)#Basic_construction_and_operation — http://www.geograph.org.uk/photo/3296251 — https://www.globalretreatcentre.org — http://www.telegraph.co.uk/news/uknews/1513815/Bonham-Carter-buys-back-family-heritage-for-2.9m.html
