She saw a complete change of appearance, too, each time any one turned around, and each time she was carried from one side to another of a person, or of a piece of furniture. We have become so used to this that we do not notice it; but to the baby each side of an object must have looked like an entirely new thing. I think it was some time before she learned to associate together the different sides and the different sizes of each object--all the aspects one chair could take, for instance, gathering into one group in her mind, and all the aspects a table or a person could take, into another; but she was learning. It was an enormous piece of work for the baby brain, but babies are not lazy, and she enjoyed it. The changes that people went through, as they moved about, were much more complicated than those of the furniture; but that only made them the more interesting. No wonder that as soon as the baby knew she could touch and feel what she saw, it was our faces she dived for with especial zeal, to explore their surfaces with her mouth; and a fortunate thing it is for the baby’s progress in knowledge that mothers do not mind having great and moist liberties taken with their faces. Our baby learned, too, at this time, with the connivance of her grandfather, and afterward her father, to fix her fingers in their beards and tug. This was doubtless educational, and it brought still another interest into the number that gathered about the faces of her fellow beings: but it led to trouble later, as her hands grew quicker and stronger in clutching. She was a joyous and sociable little being in those days, and while her serious business was looking about and studying out the visible world, or exploring with her mouth the feeling of things, her delight was as always in people’s faces and attentions. She had become charmingly responsive, and answered to nods and prattle and cuddling with the gayest of smiles and crows, and lively flourishing of arms and legs. From early in the month she acquired an ecstatic little chuckle, and once or twice even broke into a genuine laugh when she was played with a little more boisterously than usual. For by this time, and more and more every week, she began to like a frolic, and when she was tossed, rolled over, or slid down one’s knee, she crowed and beamed and chuckled in high delight. She was such a tiny baby for rough play that we tumbled her about most gingerly, but she seemed ready for anything herself. She was a baby singularly free from fear or nervous excitability, showing already quite clearly the temperament she has carried through her later childhood.