months after birth, at a period of life when the nervous system is not completely developed, and it is impossible for the infant to coordinate its movements, mothers wasted several half-hours of the day "teaching baby to walk." Holding the little creature by the body, they watched the aimless movements of the tiny feet, and deluded themselves with the belief that the child was already making an effort to walk; and because it does actually by degrees begin to arch its feet and move its legs more boldly, the mother attributed its progress to her instruction. When finally the movement had been almost established--though not the equilibrium, and the resulting power to stand on the feet--mothers made use of certain straps with which they held up the baby's body, and thus made it walk on the ground with themselves; or, when they had no time to spare, they put the baby into a kind of bell-shaped basket, the broad base of which prevented it from turning over; they tied the infant into this, hanging its arms outside