Part Ⅰ The Mathematical Study of Small Groups＆BY JAMES S．COLEMAN JOHNs HOPKINS UNIVERSITY 1
PART Ⅱ Survey of Bernoullian Utility Theory＆BY ERNEST W．ADAMS UNIVERSITY OF CALIFORNIA 151
PART Ⅲ A Survey of Mathematical Models in Factor Analysis＆BY HERBERT SOLOMON STANFORD UNIVERSITY 269