150 J. Waterhouse—The Survey Operations in Afghinistin [No. 8, 
Major Campbell was also able to make observations for latitude and 
longitude at several points and to connect his traverse by triangulation 
with reference to one of Captain Rogers’ points, Chiltan, a high peak near 
Quetta and visible at great distances. 
On his return to Quetta Major Campbell arranged with Capt. Rogers 
for determining by telegraph the difference of longitude between that place 
and Kandahar. . 
Shortly after the arrival of the army at Kandahér Captain Rogers 
accompanied the expedition to Kheldt-i-Ghilz4i and on the march carried 
on his traverse continuously, fixing as far as possible the positions and 
general features on each side of the Tarnak River. The Force marched up 
the right bank keeping near the river; the hills on both sides, Captain 
Rogers says, are pretty continuous, smaller and more broken up on the left 
bank and approaching more nearly to the stream. On the right bank the 
hills are more continuous and are from 6 to 10 miles from the stream; a 
succession of high rolling mounds interpose between them and the river, 
sometimes receding and allowing a small strip of fertile country to inter- 
pose and sometimes coming right down to the river bank. 
The road winds along the foot of these mounds and a good view of 
the hills is difficult, 
He was not able to say if this undulating country extended up to the 
hills ; but, judging from the country near Khelat, which he explored more 
thoroughly, he would say it did not, but that between it and the real 
hills there were valleys and villages. 
At Khelat-i-Ghilzai Captain Rogers fixed points to help in the survey of 
the country around. Colonel Sankey, Chief Engineer, employed some of his 
officers on a large-scale survey round the Fort, and Lieut. Ollivier, R. E. and 
Captain Sartorius of H. M.’s 59th Regt. were told off to work in connection 
with Captain Rogers further out. Owing to military reasons Captain 
Rogers was not able to go far, and did not cross the river to any distance 
until a few days before the Force left, when he got on a high hill south of 
Khelat and had a view towards the Arghasin Valley, which does not seem 
to be at all the chaos of indiscriminate hills entered on the maps; in fact 
in one direction he could see an opening of considerable width down which 
he could not detect a single hill with a telescope. Thanks to the exertions 
of Captain Chapman, Assistant Quarter-Master General, they were able to 
considerably improve the geography of the country. Supplied with points 
by Captain Rogers, Captain Sartorius made a topographical sketch of the 
country around Khelat and towards Ghazni. A small force went down the 
Arghasin Valley with directions to survey as much as possible. This expe- 
dition did not, however, bring in much as it degenerated into a simple route 
survey without any information 200 yards from the line. 
