E, at the age of 18, was probably mature--or nearly mature-- intellectually. However, in view of recent findings in regard to the growth of intelligence among pupils in high schools, we cannot be sure that at this age he has quite reached the maximum of possible accretions of power from inner growth. [11] LATER PHYSICAL MEASUREMENTS On September 29, 1921, E's physical measurements were as follows: Standing height 64.2 inches Sitting height 31.7 inches Weight (summer clothing) 166 pounds At this time his health continued to be excellent; in fact, he has never had a serious illness of any kind. E was measured again in October, 1926. By this time he had probably achieved his maximum stature. His age was then 18 years 4 months. He was still in excellent health, the only illness in the intervening five years being a "light case" of scarlet fever. At this time the measurements were: Standing height 6 feet 1 inch Weight (stripped) 194.75 pounds LATER SCHOLASTIC RECORDS In the spring of 1917 E finished the sixth, seventh, eighth, and ninth grade work at the Horace Mann School, New York City. He was then just 9 years old. Thereafter he attended the Friends Seminary, New York City, and was graduated from the high school there in the spring of 1920, with an excellent record and excess credits, at the age of 11 years 10 months. By this time E had also passed the comprehensive examinations of the College Entrance Board for Harvard College. The official communication from Harvard authorities, making statement to this effect, has been seen by the writer. E's maternal ancestors had attended Harvard (one of them having graduated from there at the age of 18 years, according to records), but E expressed a desire to attend Columbia and received permission to take the mental tests with the applicants of 1920. He was admitted to Columbia College with the freshmen of 1920, with 14 points of advance credit toward a B.A. degree. There is at hand an official statement of E's academic status on June 1, 1921, at the age of not quite 13 years. He had then 46 points of academic credit toward a B.A. degree in Columbia College. During his freshman year he made 32 points, maintaining consistently a grade of B, except in two subjects. In physical education his rating was C, and in contemporary civilization he made A the first semester. [12] E attended the summer session of 1921 at Columbia, making five credit points, all A grade, and in September, 1921, was a sophomore with many points of credit in advance of minimum sophomore status. In addition to having passed the comprehensive examinations for college entrance, he had passed the examinations in trigonometry, solid geometry, chemistry, and physics, and was at this time 13 years 3 months of age. EXTRACURRICULAR ACTIVITES