Wallace pointed out that when once the intelligence of man became dominant, his body would change but little. Wallace brought up a baby orang-outang which had a period of infantile helplessness much longer than that of a lamb or a calf. The still longer infancy of the human babe was most significant to John Fiske. It showed that the highest nervous development is the slowest. The prolongation of infancy lengthens the period of maternal affection, tends to keep parents and children together, and thus the institution of the family is founded. Progress has been in the direction of bringing out the higher spiritual attributes of man: hence the elemental truth of religion. 3 SULLY, JAMES THE NEW STUDY OF CHILDREN. Man has the child always with him. The study of the child is now scientific. The unfoldings of an infant mind throw light on the development of the human race. Child-study is necessary if education is to be rightly directed. Children often reticent: sometimes ask strange questions. To understand children, love and knowledge are required. Observation, experiment and their records. Individual cases should be compared on a large scale. 21 GALTON, FRANCIS TWINS, THEIR HISTORY AS A CRITERION OF THE RELATIVE POWERS OF NATURE AND NURTURE. Twins alike by nature may as adults be compared to note how far diversity of circumstance has been influential. Twins unlike by nature and educated alike show how far nurture compares with inherited qualities as determining character. Extraordinary cases of resemblance: twins widely separated develop the same disease or mania at the same time. Only illness or accident causes difference between twins alike in early life. Twins originally unlike so remain, although educated alike. Nature vastly stronger than nurture in the making of man. 53 HUDSON, WILLIAM H. SIGHT IN SAVAGES. Keen observation of cards by a player whose vision otherwise was ordinary. We see what we look for. Sight in savages is trained to detect particular objects,--men, beasts and birds of prey, reptiles, game and the like. Sight in civilized man is just as sharp, but is directed to different objects, the letters of a printed page, for example. 79 HOLMES, OLIVER W. MECHANISM IN THOUGHT AND MORALS.