have not yet acquired the habit of responding to this particular psycho-motive stimulus; he crawls up to where my hand ends, advances first one paw, then another, and finds only empty space; he then stretches out his neck, and two or three times running makes an attempt with his paws at the movements which are the precursors of the act of jumping. He would like to jump down, but cannot do so; instinctive intention is here in advance of the adaptiveness or the strength of the muscular apparatus fitted to execute it. He retreats frightened and discouraged, and whines for help.
Riquet placed in the same position, goes through almost the same movements, but he is able to do more; he has managed to seize hold (chance perhaps assisting him) of the edge of the box, he sticks to it, leans over without letting go, and would have got down, or rather tumbled down, into the box, if I had let him.
27th May. Every day they get to know me better. Now, after I have taken them in my hands, or stroked their head, neck, or lips, they go back to their box quite excited; they walk about in it faster than before, snap at each other and strike out their paws with much more spirit. Play has now become a matter of experience with them, and grows