1923%20Memoir%20on%20Maps%20of%20Chinese%20Turkistan%20by%20Stein%20s

APPENDIX A 118
(ii). (Clrart 6%:). 1Jtthl11ng II.~., near Cjutlaehe, wan fixrd by resection from 'V' h.~.
and Pk. ,2/69(:, all of Rirn Singh'u \vork, 1906-07.
(iii). (Chart 6%;). Ak-thgh 11. fi. was fixed from Ititrn Sirigll's Pk. 1169~ and
Ilfihlnng h.s., tShe side between these two points being computed from their eo-onlinstes and
tho inclutletl angle at l'k. I/fiSti hcing drduccd.
(iv). (Cl~arts (i!Jt; and K). 1"rorn here onwards to the first baee near Khiwlalik t,he
con~~exion is \veali, a~~tl this base has been put into HBrn Siugh's terms hy means of his
two poirrts l'k. I/(;!~K arrd Pk. 3/(i9u. The observed latitode at K11Hdalik 'A' 11,s. was
.2j secontls in eseess of the triangulated value.
(v). ((:harts GXK and J). By means of the stations near Khidalik and Chigelikchal,,
~,oints were i~~tersected as far as Kiehik-jangal-fiai to the north-east.
(vi). ((:hart G!l.t). The second base \\,as measured at Yfinus-chap. A connexion
bet,n.tvn this and t,he first was only possible through the Kichik-jangal-wai statior~x, 'J' h.8.
and '28' II.~., YII~~IIII~-~OII~ 'K' II.~., and Kujong-doug 'L' h.s. The observations were
deficient; and one trianSle co111d or~ly be eornputed with the aid of an angle measured from
the chart. Unfortunately the astronornieal observatio~~s at the YCnus-chap base proved
unreliable, and tile co-ordinates of its stations are ttrerrfore very weakly connected to Rhrn
Singli'r work.
(vii). (Clrart 69.1). A trian:le at Yilnns-chap mas then conlp~~ted to fix the
po>itioo of Pk. -I./G!l.r.
(viii). (CI~art G9.v) The connrsion l~rt~reen this point ant1 the third base at Tatlik-
Lulali was now talien up. l'he 1:ltitode nr~cl azimuth at the 'A' end of the base were observed,
the Iongitt~de being derived from the I~lane-table. The intermediate points were then
eon~l~uted with there elements bavk to lJk.4./61)~. In t,hese t,erms the latitude of this peak is
greater by 39 seconds and the longitude greater by 11 secontls than the eo-ordinates of the
sairle peak in the terms of Yunus-chap.
The Tatlik-bulak base terms have been accepted.
(is). (Chart 75~). Prom the l'atlik-bulak base, Pk. 1175~ and Pk. 2175~ were then
(x). (Chart 75~). Three triangles mere formed between these two points and the
stations at the fonrth base at Toghrak-chap, where astronomieal observations were made.
IYith the latter as initial elrnlents, the latitude of PI;. 1175~ and 1%. 2,175~ were 6hnd 43
seconds respectively less than their latitude co-ordinates in terms of the third base at
Tatlik-b111ak.
(xi). (Charts 75.t, D, E, and P). The longitude of the fourth base was converted into
t.he terms of the third baee, and the co-ordinates of all points up to Pk. 1/75e mere computed.
The last named mas fixed from t,he double trian~les formed by the three Xiran stations.
(I) XqTIN-BULhK TO KORLA, 1913-15 (l;.iL SING10
(i). (Charts NK 45w, NK 451, NK 4Gc, and NK 46n). This section was computed
from a ~neasared base at Xstin-bolak; aztronomicnl observations for latit~~de and azimuth
were taken at the east end of the Lase. A chain of triangles was then comp~ited to 'D' h.s.
near Singer, the ori~inal longitude being derived from the supposed "peak 66 " (Pk. 1176~).
Two triangles were then forn~ed, '1)' II.~., Kara-lioshun and 'A' h.a. at Siuger and '-4' h.s.,
'B' h.s., 'D' h.s., the base of the latter, AB, hcing measured.
The mean of the common side AD, has been accepted and the eo-ordinates of 'A' h.s.
thereby put into terms of Astin-bulak.
(ii). (Charts NK 45s and NK 45w) In the abseuce of st~fficient observations
to connect Shindi 11,s. by regular triangles, Shindi No. 1 h.s. and No. 2 11.s. were fired by
rebeetion from observations to CC 5 and CC 6, already fixed. Astronomical checks showed
1' 14" greater and 1' 45" less than the triangulated values of latitude and azimuth
respectively.
(iii). (Charts NK 45~ and NK 4.50). It was only.n,ith difficulty, owing to deficient
olsersntious, that the comlrt~tations were then carried to the point CC 80 in the neighbour-