1. THE CONCEPT OF INTELLECTUAL GENIUS Concepts of the Ancients, Dictionary Definitions, Concepts of Genius, Miscellaneous Observations Tending to Define Characteristics of Genius, Speculation and Comment Concerning Genius 2. EARLY SCIENTIFIC STUDY OF EMINENT ADULTS Origin of Eminent Adults, Yoder's Study, Terman's Inferences from Biography 3. PUBLISHED REPORTS ON TESTED CHILDREN Modern Approach to the Study of Ability, Binet's Method, The Range of Intellect above 180 IQ, Children Observed before the Era of Binet, Children Who Test above 180 IQ by Binet-Simon Tests, Children Who Test above 180 IQ by Stanford-Binet Tests, Generalizations PART II: TWELVE CASES NEW TO LITERATURE CONCERNING TESTED CHILDREN 4. CHILD A Family Background, Preschool History, School History, Judgments of Teachers, Mental Measurements, Traits of Character, Physical Measurements and Health, Miscellaneous Characteristics 5. CHILD B Family Background, Preschool History, School History, Traits of Character, Judgments of Teachers, Mental Measurements, Physical Measurements, Miscellaneous Characteristics 6. CHILD C Family Background, Preschool History, School History, Traits of Character, Mental Measurements, Physical Measurements, Later School History 7. CHILD D Family Background, Preschool History, Traits of Character, Mental Measurements, Physical Measurements and Health, Miscellaneous Characteristics, School History 8. CHILD E Family Background, Early History, School Achievement, Mental Measurements, Social Habits, Tastes, etc., Later Mental Measurements, Later Physical Measurements, Later Scholastic Records, Extracurricular Activities, Teachers' Comments, Summary up to 1921, Eventual Scholastic Records, Researches of E, Summary of Development 9. CHILD F Family Background, Preschool History, Early School History, Early Test Scores, Home Rating, Miscellaneous Characteristics, Later Educational Career 10. CHILD G Family Background, Educational History, Early Mental Tests, Later Test Records, Traits of Character, Physical Measurements, High School Record, G's Brother's Record 11. CHILD H Family Background, Preschool History, Mental Measurements, Physical Measurements, Intellectual Ability 12. CHILD I Family Background, Preschool History, Early Educational History, Mental Measurements, Physical Measurements and Health, Miscellaneous Characteristics 13. CHILD J Family Background, Childhood Characteristics, Later Mental Tests 14. CHILD K Family Background, Early Development, Mental Measurements, Physical Measurements, Later Educational Progress 15. CHILD L Family Background, Early History, Achievement at Speyer School, High School Record to Date of Writing, Later Tests and Inventories 16. SUMMARIES OF HEREDITIES AND EARLY BEHAVIOR Family History and Background, Physical and Behavioral Development 17. SCHOLASTIC ACHIEVEMENT AND CREATIVE ACTIVITY Scholastic Achievement and Educational Adjustment, Creative Work, General Statement