Captain R.B. Pemberton has described this book as a Report on the Eastern Frontier of the then British territories extending from the North-Eastern region of India which extended even further into the lrawaddy Valley. The book was first published in 1835. It gives an almost gazetteer like account of the topography, the land routes, the commercial and military operations, the tribes, the kings and almost every available information on this exotic region which continues to be of great strategic importance to India even today as it was to the then British Government of India.