2 Records of the Indian Museum. [Vol. VITI, 



of the N.-E. Frontier, but it now became evident that this 

 idea would have to be abandoned. As events turned out this was 

 not so disadvantageous as was feared, for the fauna of the foot- 

 hills yielded material of very considerable interest and in investi- 

 gating this region it was not necessary to make any drastic 

 reduction in the apparatus required to carry on the work. But 

 the country visited must be regarded purely as the foot-hill region 

 of the north-east Himalayas and this fact must not be lost sight of 

 in any comparisons which may be drawn between the Abor fauna 

 and that of the ranges further to the west. 



We remained at Rotung until January 12th, when we pro- 

 ceeded to the head-quarter camp at Yembung, and a week later I 

 received permission to join a small party with an Indian surveyor 

 under Capt. A. L. M. Molesworth which was going up the right 

 bank of the Dihang to explore the courses of the Siyom and 

 Shimang rivers, two large tributaries of the Dihang. I left with 

 Capt. Molesworth on January 23rd. We reached Parong, a village 

 two marches below Riga, and Damda which is some ten miles up 

 the Siyom river, and returned to Yembung, sooner than was 

 anticipated, on February 3rd. Triangulation did not form part of 

 the survey work on this occasion ; there vvcre consequently no 

 halts of any considerable length and the greater part of the time 

 was occupied in hard marching which afforded but little facilit}' 

 for zoological work. Subsequently I proceeded to the Komsing 

 camp, close to the Abor village of that name, and remained there 

 until March 3rd, but the work accomplished during this period 

 was almost entirely anthropological. 



On my return to Yembung I proceeded as soon as possible to 

 Rotung, where I purposed staying a few days to make further 

 observations on the zoology of the district. But Capt. Sir George 

 Duff Dunbar, who was then in command of Rotung post, sug- 

 gested that I should make a short expedition to the west beyond 

 Kalek and the Sireng valley towards Misshing, offering to pro- 

 vide an escort and Abor cooly transport for the purpose. I ac- 

 cepted this offer gladly, and in company with Mr. J. Coggin Brown 

 of the Geological Survey and Dr. Falkiner of the Assam Valley 

 Light Horse, who was then attached to the Lakhimpore Military 

 Police, I left Rotung on March 15th, marching two da3^s towards 

 the west, halting the third day and returning on the evening of 

 the 19th. This expedition gave me an opportunit}!- of visiting 

 fresh country with high tree- jungle of a type not elsewhere seen, 

 a change which was of course accompanied by a corresponding 

 change in the fauna. My thanks are due to Sir George Dunbar 

 for suggesting this expedition and for making every arrangement 

 necessary for its success. 



On the morning of March 20th we left Rotung and marched 

 beyond Renging to the camp of the 32nd Pioneers in the Sirpo 

 valley and after a day's halt proceeded to Pasighat, from which 

 place we reached Balek, where three days were spent in anthro- 

 pological work. Returning to Pasighat we proceeded on March 



