At nine o’clock I went to look at them with the light. This threw them into dreadful consternation. I observe in them both something like intentions to bite, while rolling each other over, they keep their mouths open, and snap instead of sucking when they come in contact with any part of each other’s bodies; but it is all mechanical. Here we have an increase of activity produced by an accession of powers and temporary over-excitement.
18th May.—They are lying asleep on their sides, facing each other, with their fore-paws half stretched out against the hind ones. Riquet’s sleep is much disturbed; his mouth touches one of his brother’s paws, which he instantly begins to suck. Is this a mechanical or unconscious action? Is he not possibly dreaming? After four or five attempts at sucking he lets go the paw, and sleeps on tranquilly for four minutes; but the noise of a carriage passing in the street, and perhaps the consequent vibration of the floor and the bottom of the box, cause violent trembling in his lips, paws, and tail.
The mother gets back in the box; and the kittens, instantly awake and erect, utter three or four mis to welcome the joyful return.
In settling herself down the mother leans rather heavily on Riquet; the latter, who used formerly to extricate himself mechanically, and who already knows from experience the inconvenience of such a position, moves off brusquely, goes further away than he would have done formerly, and Mitis, on the lookout for a teat, hears close to him the noise of his brother’s sucking. He pommels his head with his hind-paws, rolls up against him, striking out with his fore-paws, and knocks him over with the weight of his body; he is now in possession of the teat which his brother had first tried, and, finding it as good as the one he was sucking before, he sticks to it.
18th May.—Mitis was trying to worry Riquet who was busy sucking. I hold out my hand to make a barrier between the two; Mitis pushes it back with his paw, but soon perceives the difference between the two bodies which he is pushing against, gives over his excitement, and looks out for another teat. No doubt in this case there was no comparative perception of difference, but different sensations producing different muscular actions; that is all, I imagine, but this is nevertheless the germ of veritable comparison.
19th May.—Both the eyes of both kittens are about to open; the eyelids seem slightly slit, and are covered with an oozy film. At the external corner of Mitis’ right eye there is a little round opening disclosing a pale blue speck of eyeball, the size of a pin’s head. At the internal commissure of the left eye there is also a round opening, but much smaller, and showing no eye-ball through it. Riquet’s right eye is also opening slightly; the edges of the left eyelids are stopped up by a yellowish discharge.
I fancied that Mitis was playing in the box; I tumbled him over on his back, tickled his stomach, and stroked his head; he struck out his paws without attempting to pick himself up; this was evidently a more or less conscious attempt at play. His mother came to lick him in this attitude, and he performed with his fore-paws as previously. Riquet, too, shows a tendency to play, but not of such a pronounced nature.
21st May.—Riquet’s left eye is beginning to open at the inside corner.
I took them both up on my hand, and waved my fingers in front of their partially opened eyes; but I did not observe any movement from which I could infer the power of distinguishing objects.
Mitis, placed close to his mother’s head, nibbles at it and plays with his paws on her nose; the mother does not approve of this amusement; she lays a paw on her son’s neck and teaches him respect; soon he escapes from her grasp, and begins searching for a teat.