_Child A_. At 12 months he was classifying his blocks according to letter shapes. Before 16 months of age A tired of saying the letters of the alphabet forward and "guessed he would say them backward." He "made rhymes" of his own by the third year. He developed arithmetical principles unsuspected by either parents or teachers. He had an elaborate "imaginary land." He did not play well with other children because he always wanted to introduce new methods of playing the games. He devised elaborate schemes of his own for classifying events and objects. There is very little of the conventional interest in drawing, painting, poetry, mechanics, or music in this account, but it is clear enough that in his own way A had originality. _Child B_. This child's early acquisition of the art of reading appears to have been untutored, and her passion for organizing clubs showed at least a certain type of initiative. But the record gives little evidence of other creative activity. Her chief distinction so far as noted was in the fields of excellent schoolwork and social adaptability. _Child C_. This boy's earliest recognition was on the basis of what the teachers called his "phenomenal memory." But from early years his chief passion was for science, and his main interest therein was the possibility of discovering new things. There is, however, little evidence of ingenuity in the record, and C was chiefly distinguished by the mass and facility of his knowledge, learned chiefly from others. _Child D_. The very curiosity of this boy might be said to have a creative or original character. "He was always asking unexpected questions." His playground newspaper was an original project in spite of its conventional character. So also was his passion for tabulation and calculation. His imaginary land was a complicated creation, as was the elaborate dictionary of its unique language. Musical composition was one of his pastimes, and he had active native talent for drawing and design. The invention of new words and new games was creative, and he had original classifications for many varieties of natural objects. His interest in science, which became uppermost, led to original experiments such as those on "the path of a tack." His final adoption of scientific work as a career is in keeping with this, and the position held at the end of his brief life was one concerned with chemical research in a relatively new industry. In a very real sense this boy's creative interests are fundamental in the picture of his development.