604 THE FRESH-WATER LOCHS OF SCOTLAND 
lake receives the waters of many rivers, the principal being the 
Siang-Kiang. 
Poyang Lake.— Another large lake, 70 miles in length by 40 
miles in greatest breadth, with an area of about 1640 square miles, 
connected with the Yang-tse Kiang river basin is Poyang, which is 
traversed by the River Kan-Kiang. This lake, which drains nearly 
all the province of Kiang-si, is subject to great fluctuations in size 
and depth, and acts as a regulator of the Yang-tse Kiang. 
Lake Tien-Chi (or Kunming), in the province of Yun-nan, is 
about 40 miles long, and is also connected with the Yang-tse Kiang 
by the Poo-to River. 
River Orlng-nor and Jaring-nor are the names given to the lakes of 
oang 10. Upper Hoang-ho by most Mongols, but the Russians have called 
them Lake Russian and Lake Expedition.^ Roth are fresh-water 
basins, 13,900 feet above sea-level, separated from each other by 
a hilly isthnuis nearly 7 miles broad. Oring-nor, the eastern lake, 
is about 80 miles in circumference, and Jaring-nor about 66 miles. 
The latter was not sounded, but appears to be shallow from the fact 
that wild vaks were seen wading across it ; the former, according to 
measurements taken by Laduigin along its longer axis, was 105 feet 
deep at a distance of about 7 miles from the place where the Upper 
Hoang-Ho, or Yellow River of Eastern Tibet, flows out from it. On 
23rd June 1900, the surface temperature of Oring-nor was 47"" "7 Fahr. 
(8°'7 C.) to 53° -8 Fahr. (12°-1 C), and the bottom temperature 46° 0 
Fahr. (7° -8 C.) to 46 -8 Fahr. (8° '2 C). 
India. Kolar Lake, a fresh -water lake in the Madras Presidency of Lidia, 
midway between the deltas of the Rivers Kistna and Godavari, drains 
east into the Ray of Rengal. It abounds in water-fowl, and at dry 
seasons traces of ancient villages are perceptible in its bed. The 
area of the lake in the monsoon extends to more than 100 square 
miles, but it is becoming greatly reduced by reclamation and 
embankments. 
Siam. Tonle (or Tale) Sap (literally " inland lake ""), a large lake in the 
north-west of Cambodia, serves as a reservoir for the surplus waters of 
the Mekong River, and consequently varies greatly in size and depth 
according to the season. During the dry season it is drained south- 
east by a branch of the Mekong, and has a length of 70 miles and 
a depth of from 2 to 4 feet ; during the summer monsoon it is 
fed by the same branch, and increases in length to 120 miles, with a 
^ Kozloff, "Tlirougli Eastern Tibet and Kam/' Geogr. Jour?i., vol. xxxi. p. 529, 
1908. 
