Learning to stand is an essential step preliminary to talking, and causes a child the liveliest satisfaction, giving him further control over his own body, and responding as it does to an inborn impulse. Sigismund places the first efforts in this direction in the eighteenth or twentieth week. “If the nurse holds up a child of this age on her lap, supporting it under the arms, it will dance, hop, and spring perpetually like a hooked fish, bound like a grasshopper, draw up his legs like a closed pocket knife, and twist his head and neck—in short, he will exhibit the same mercurial exuberance of motion which pleases us in young goats, lambs, and kittens. The child’s movements, however, are naturally in the direction of the normal human attitude, and he will make desperate attempts to pull himself up by his nurse’s dress or the edge of a chair or his bath tub, and when by the exertion of this utmost strength he succeeds he commonly breaks out into loud cries of joy.”[171] The playful quality so clearly recognised here appears also in Preyer’s remark that his boy in the fortieth week preferred to be exercised in standing rather than in sitting, although the former was more difficult.[172] This fact no doubt enhanced the pleasure. At the end of the first year or beginning of the second the child is usually far enough on to stand entirely alone. “He is amazed at his own daring, standing anxiously with feet wide apart, and at last letting himself down rather abruptly.”[173] Coming now to actual walking, it is uncertain whether the alternating kicks of the infant point to special instinctive impulses, but we may be sure that when a child pushes forward on being held with the feet touching the floor he feels the stirrings of instinct. “Champney’s child,” says Preyer, “was held upright for the first time at the end of the nineteenth week, so that his feet rested on the floor, and he was moved forward; his legs worked with regularity, and each step was taken accurately and without hesitation or wavering even when the feet were lifted too high. Only in this case was the alternation interrupted, and he made another effort to take the step with his feet in the air. Resting the body sideways on one foot seemed to transfer the stimulus to the other. These observations ground my belief that walking is an instinctive act.”[174] This happens somewhat later if the child is not moved forward on being held up; thus Baldwin, whose experiment included no such motion, found that the “native walking reflex” suddenly appeared in the ninth month, while previous to that only a single alternation appeared, which might well be ascribed to chance.[175] Independent experimentation begins when, having drawn himself up by a chair, the child walks around it with the help of his hands, all the time resting on the seat, in which progress the achievement of a corner is as critical a movement as the rounding of a jutting crag in the path of a mountain climber.