FOREWORD One of the items in our academic programme is to invite well-known scholars to come to the Institute as Visiting Professors for a given period to hold discussions with our Fellows and deliver courses of lectures on subjects of their choice in their respective fields of specialization. In fulfilment of this requirement we had invited Dr. Suniti Kumar Chatterji, National Professor of Humanities. India, to come to the Institute as a Visiting Professor for the year 1966. Dr. Chatterji was gracious enough to accept our invitation. During his stay with us in October 1966, he delivered, besides holding discussion groups, a series of lectures on the Balts and the Aryans. These lectures have gone into the making of this book. The Institute feels very thankful to Dr. Chatterji for his having accepted our invitation and delivering a very interesting series of lectures on a subject which is not very familiar even to experts in the field. Indian Institute of Advanced Study Rashtrapati Nivas, Simla 25th July 1967 NIHARRANJAN RAY Director