CONTENTS:- Introduction by N. Nagaraju. Section I: 1. Physiography of Arunachal Pradesh/R.C. Joshi. 2. Aspects of social organization of some tribal societies of Arunachal Pradesh/Manis Kumar Raha. 3. Oral tradition: an important source of Adi History/Gindu Borang. 4. Man's position in the world as per Adi Faith/Jogendra Nath. 5. Historical value of Nyishi Oral Tradition/N.T. Rikam. 6. Traditional costume of the Tagins/Ashan Riddi. 7. Cultural heritage of the Nah/B.K. Bora. 8. Socio-cultural heritage of the Nocte/Vineeta Dowerah. Section II: 9. Impact of Neo-Vaishnavite Movement on the Tribes of East Arunachal Pradesh/Narayan Singh Rao. 10. Tangsa religion and philosophy: a note on Lord Rang-Frah/Narayan Singh Rao. 11. Mahayana Buddhism in Arunachal Pradesh/Byomakesh Tripathy. 12. Theravada Buddhism in Arunachal Pradesh/Byomakesh Tripathy. 13. Indigenous religion and practices of the Nyishi/Tana Showren. 14. Parasuramkund: a historical survey/Byomakesh Tripathy. Section III: 15. Aspects of Neolithic Culture in Arunachal Pradesh/Byomakesh Tripathy. 16. Excavated archaeological sites of Arunachal Pradesh: a brief survey/D.K. Bora. 17. Archaeological remains of the Mishmi Hills Region/Basudeb Malik. 18. Buddhist Stupas of Arunachal Pradesh: A survey/S. Dutta. 19. Fortification and forts of Arunachal Pradesh/Amarendra K. Thakur. 20. Temples and fort ruins of Arunachal Pradesh/S.K. Dash. 21. Museums in Arunachal Pradesh: an overview/Prabhas K. Singh and Byomakesh Tripathy.