_Father_. The father of Child F was born in Albany, New York. He had a high school education and business college training. He has always done clerical and office work, especially bookkeeping. He is fond of athletics, reads only newspapers and magazines, is quick, alert, and active, has an even temperament, is seldom worried. He has no interest in clubs or organized activities. Seems to take an interest in his children. (In later years the father lost the balance and evenness of temperament here reported and became unemployed much of the time. He died in March, 1935, at the age of 41, "apparently accidentally drowned.") _Mother_. The mother of F went to high school for two years and earned a teacher's certificate. She taught two years in rural schools but disliked this work and had no patience with children. She liked music, however, and studied piano and voice for a short time, but now pays little attention to it. She has always regretted going to high school, believing that if she had devoted that time to music, she might have had some success in it. Her interests are limited to home affairs. She says she has few friends and does not mix well with people. She appears calm and does not worry, is sensible in her dealings with her children, takes no part in organized activities, but always sends the children to Sunday School. She is a very good home manager, and runs things effectively on small resources. PRESCHOOL HISTORY F was born in upper New York State, November 14, 1914. The period of gestation was of normal length; at birth he weighed according to the father 9 pounds, according to the mother 11.5 pounds. No records of early infancy were kept, so that many such details are given from memory, either by the father or by the mother. The child was the mother's first-born. She reports that much of the infant's weight at birth was due to his enormous head, which necessitated instrument birth. Birth was difficult, the mother was severely injured, and the child's head "was so distorted from the instruments that it was weeks before it could be molded into normal shape." F was bottle fed from birth to one year. His first teeth appeared at about 10 months. He talked (short sentences) at about 12 months, learned to walk alone (several steps) at 14 months, learned to read at between 4 and 5 years of age. His childhood illnesses were measles, whooping cough, chicken pox, and scarlet fever, all between 6 and 8 years of age. Cried little as a baby. His mother says "he was a lovely baby to take care of." No sensory defects or signs of physical weakness. Adenoids were present, to be removed shortly after the initial interview in 1924 (age 10 years). He sleeps soundly. EARLY SCHOOL HISTORY