[26] In 1881, Kintup (or K.P. as he is listed in Departmental records) was sent secretly to Southern Tibet to throw marked logs into the Tsangpo river to prove its continuity with the Bhramaputra. This intrepid spy pushed his way through unexplored jungles infested with wild animals, cannibals and head-hunters, and after four years of thrilling adventures and narrow escapes finally managed to throw the marked logs into the river. But there was no one watching for them below in Assam as the officer in charge of the experiment had died. For a full account of Kintup's feats see 'Exploration on the Tsangpo in 18804', Geographical Journal XXXVIII (1911). Survey of India Records IX, L.A. Waddel.