This, too, is an exercise children delight in, but, as it involves some strain on the attention, it is fatiguing, and should only be employed now and then. It is, however, well worth while to give the children the habit of getting a bit of landscape by heart in this way, because it is the effort of recalling and reproducing that is fatiguing; while the altogether pleasurable act of seeing, fully and in detail, is likely to be repeated unconsciously until it becomes a habit by the child who is required now and then to reproduce what he sees.