of about a mètre, looking at them from under a chair. He goes straight up to her, but very slowly, and with a great deal of waddling; all of a sudden he stops. He has heard his brother’s voice, the latter having whined on my touching him to rouse him out of his persistent immovability; he turns his head in our direction, distinguishes me, turns straight round, and comes up to me with much greater rapidity and assurance than he had shown in going to his mother. The reason of this is, that the road to me was shorter and surer, and the stimulus to traverse it greater, owing to the larger proportions of my body. I place them back in the box, and they begin playing again with zest. The one who had only moved feebly on the floor, walks, and even jumps, much better this morning. This little outing seems to have stimulated him to an effort which he had not made before. In like manner we sometimes note progress in young children from day to day.
They can now climb up to the middle of the box.
A board, a few centimètres wide, is nailed to the top of the box, and covers about a fourth part of it. Mitis looks at it with longing eyes; he makes up his mind, draws himself up as erect as he can, stretches up his paws to the partition and within five centimètres of