And remember in noticing such landmarks that you may want to use your knowledge of them some day for telling some one else how to find his way, so you must notice them pretty closely so as to be able to describe them unmistakably and in their proper order. You must notice and remember every by-road and foot-path.
Remembrance of these things will help you to find your way by night or in fog when other people are losing themselves.
HORSES' TRACKS
Walking.
Trotting.
Canter.