1863. | Progress of the Trigonometrical Survey. lil 
Histracts from a report from Maor J. T. Wanxer, Engineers, 
Officiating Superintendent, Great Trigonometrical Survey, to the 
Secretary to Government of India, Military Department. 
Dated Dehra Dhoon, 25th August, 1862. 
Srr,—I have the honor to narrate the progress made in the course 
of the operations of the Trigonometrical Survey, since its late Super- 
intendent, Sir Andrew Waugh, submitted his last Tabular Progress 
Report, with his No. 13,115, dated 3Jst January, 1861, to your 
office. 
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3. The operations in Kashmir under the superintendence of Cap- 
tain Montgomerie have made good progress, notwithstanding the 
increasing difficulties which have had to be encountered as the work 
progressed, and entered higher and more inhospitable ground. In 
the year 1861 the triangulation was extended over an area of more 
than 12,000 square miles, including some very elevated and difficult 
country in Zanskar, Rukshu, the Upper Indus, and in Khagan and Nu- 
bra. At several points it was carried up to the Chinese boundary, and 
stations were visited in the neighbourhood of the Parang and Barala- 
cha passes, where a junction of secondary points was formed with the 
North West Himalaya series, the basis of the degree sheets recently 
published in Calcutta by the Surveyor General. The stations in 
Ladak and on the Upper Indus were very high, generally over 17,000 
feet. Mr. Johnson took observations at one station more than 
20,600 feet high, the greatest altitude yet attained as a station of 
observation. Several remarkable peaks Trans Indus, probably form- 
ing the watershed between the Chitral and Swat valleys, were fixed 
from the stations West of Khagan. 
4. ‘The topography embraces an area of about 14,500 square 
miles, executed on the seale of 4 miles to the inch, leaving but a very 
small portion of Little Thibet unfinished, and completing the greater 
portion of Nubra, Ladak, Rupshu, (or Rukshu) and Zanskar. Sever- 
al of the Salt Lakes on the table-land of Rukshu have been survey- 
ed. Some exceedingly difficult ground was sketched by Captain 
Austen in Little Thibet, varying in altitude from 7000 to 28,300 feet 
above the sea. ‘The glaciers he has discovered and surveyed are 
