1889.] Address. 



culty in obtaining supplies the party was obliged to retrace its steps 

 when only two days' march from the Hukong Valley. Mr. Ogle was able, 

 however, to survey an area of 1,500 square miles of totally unknown 

 country, notwithstanding delays by rain and foggy weather, and this is a 

 valuable acquisition to geography, which will compensate in some 

 measure for the failure of the expedition to reach its objective points. 



The result of the Expedition, however, has been to establish the 

 possibility of reaching the Hukong Valley by either of the two routes 

 explored, viz., that by the Nbngyong Lake, Namyang and Daffa Kong's 

 village, which is two days' march from Mainkhwom ; and the other by the 

 Naga Hills route, through the villages of Vogli, Phung, Morang, Shange, 

 Hasang, and Khulluk, to Sombia Nong's village, which is five marches 

 from Mainkhwom. The Nagas south of the Patkoi were found to be 

 very friendly. 



Details of this Survey will appear in the forthcoming Annual Report 

 of the Survey of India, now under preparation. 



Hazdra Border. — A survey party under Captain "Wahab, R. E., 

 accompanied the military expedition to the Black Mountain and Hazara 

 country in October and November last, and surveyed and mapped on the 

 half-inch scale a total area of about 500 square miles, including a con- 

 siderable tract across the Indus, adjoining Buner, and of the Indus 

 Valley above Tbakot, which was sketched from commanding points. 

 The triangulation extended over about 600 square miles and the heights 

 of 24 points have been fixed trigonornetrically. 



The course of the River Indus has been definitely fixed to some 

 distance north of Thakot, with the exception of some 13 miles between 

 Judbai and the mouth of the Chakeswar River ; but there it has been 

 fixed approximately and its course determined within narrow limits. 



It is to be regretted that the survey party had not the opportunity 

 of reconnoitring the river route between Thakot and Kunhar, to enable 

 the completion of the map with regard to the western slopes of the 

 Black Mountain, 



TJl^per Burma. — It is satisfactory to know that the Reconnaissance 

 Survey of our newly acquired territories in Upper Burma is being 

 vigorously pushed on, and a very large amount of work was done 

 during the last field season by Major Hobday and his assistants, in con- 

 nection with the various military movements undertaken for the pacifica- 

 tion of the country. 



Triangulation has been carried over an area of 23,274 miles, and 

 the area of country mapped on the scale of 4 miles = 1 inch amounts 

 to about 20,780 square miles. 



A large-scale survey of the Ruby-mine tract has also been made, 



