The Singphoo tribes occupy the country between the twenty-eighth and twenty-ninth degrees of north latitude, bounded on the north by the Burrampooter, on the east by the Mishmee mountains, on the south by the Patkoe range, and on the west by the space from the mouth of the Now Dehing river, debouching into the Burrampooter in a direct line to Ningroo, terminating at the foot of the hills south of the Boree Dehing river. Half of this tract, of about 1,400 square miles, may be considered hilly, and the remainder undulating. The soil is rich and fertile, and abundant crops of rice are easily raised both on the high and low lands. Sugar-cane grows luxuriantly; tea is likewise found, and every part of the country is intersected by fine clear streams. The most productive corn tracts are the valleys of the Teerap, Namroop, Boree Dehing, Now Dehing, Mudhoopanee, Tengapanee, and Kurempanee. Almost the whole of this country, at the present time, may be said to be one immense forest, but about sixty years ago, or previous to the arrival and settlement of the Singphoos within the Assam frontier, it was considered, from the great extent of cultivation, a fertile, salubrious region. The Singphoo population was estimated in 1838 at about 6000 persons; but in the absence of a regular census, we can form no accurate estimate of their real numbers. At the present day their communities are very small: probably 6000 persons would not be found scattered over the whole frontier north of the Patkoe range. In the vicinity of the Tengapanee, the following Singphoo chiefs reside:--Niphoonnong, Tangsangtau, Jowbongsang, Nidong, Koonkie, Phoop, Oompheedor, Luttora, Ong, Keemingdoo, Niyang, Lajee, Mannong, Nakinchong, Nisah, Koomiyunglah, Ninayong, Jooloo, Nisah Doboon, Jowna, Wakhut. On the Now Dehing; Komonjong, Wakhut, Soanjang, Kamchowjow. On the Mudhoo and Jengloo-Panee; Luthaon-Jowbong, Simaen, Moolan, Jowken, Nisam, Phoinchee, Seerolasein, Mokhoh, Nidhen Lekhala, Nizen Chowkhen. On the Boree Dhing; Kinglong, Chamsong, Ningroola, Beesa, Lakhoom, Noobrong, Lajong, Seong, Bathamgam, Moongong, Jowkeem.