Page:Scouting for girls, adapted from Girl guiding.djvu/166

152 Judging the distance of objects from you is only gained by practice, and judging the distance of a journey is generally estimated by seeing how long you have been travelling,

A Scout must be able to estimate heights.

and at what rate; that is to say, supposing you walk at the rate of four miles an hour, if you have been walking for an hour and a half you know that you have done about six miles.