Once I saw a little girl of seven running up and down the room, carrying all kinds of things as fast as she could to her doll. When I asked her what was the matter, she told me that her doll had the measles, and she was taking care of her. In all kinds of ways, we see the little girl occupying herself in the activities and inclinations of her future existence. She practises housework; she has a little kitchen, in which she cooks for herself and her doll. She is fond of needlework. The care of her own person, and more especially its adornment, are not forgotten. I remember seeing a girl of three who kept on interrupting her elders' conversation by crying out "New clothes!" and would not keep quiet until these latter had been duly admired. The love of self-adornment is almost peculiar to female children; boys, on the other hand, prefer rough outdoor games, in which their muscles are actively employed, robber-games, soldier-games, and the like. And whereas, in early childhood, both sexes are fond of very noisy games, the fondness for these disappears earlier in girls than in boys. Differences between the sexes have been established also by means of experimental psychology, based upon the examination of a very large number of instances. Although it must be admitted that some of the acquirements of this school are still open to dispute, the data of these collective investigations must not be ignored. Berthold Hartmann has studied the childish circle of thought, by means of a series of experiments which are commonly spoken of as the Annaberg experiments. Schoolboys to the number of 660 and schoolgirls to the number of 652, at ages between 5-3/4 and 6-3/4 years, were subjected to examination. It was very remarkable to see how in respect of certain ideas, such as those of the triangle, cube, and circle, the girls greatly excelled the boys; whereas in respect of animals, minerals and social ideas, the boys were better informed than the girls. Characteristic of the differences between the sexes, according to Meumann,[16] from whom I take these details, and some of those that follow, is the fact that the idea of "marriage" was known to only 70 boys, as compared to 227 girls; whilst the idea of "infant baptism" was known to 180 boys as compared to 220 girls. The idea of "pleasure" was also much better understood by girls than by boys. Examination of the memory has also established the existence of differences between the sexes in childhood. In boys the memory for objects appears to be at first the best developed; to this succeeds the memory for words with a visual content: in the case of girls, the reverse of this was observed. In respect of numerous details, however, the authorities conflict. According to Lobsien, boys have a better memory for numbers, words, and sounds. The same investigator informs us that in girls the visual memory is distinctly better than it is in boys, this indicating that girls' memory for objects is also