Note 25 — PART I.
Reading edition
The following analyses of the chief springs in the Wadi Rayan, made by Mr. Lucas, Chemist to the Survey Department, are of interest:—
North Spring. South Spring. East Spring.
Matter In Solution 398·8 350·8 811·6
Chlorine calculated as Sodium Chloride 278·4 238·2 585·5
Sulphur Trioxide calculated as Sodium Sulphate 62·9 53·9 126·2
The above figures are parts per 100,000 parts of water.
Although the above analyses prove the water to be of a very poor quality for drinking purposes, compared with many of the wells and springs of the oases, the water, which is quite clear, seemed good. Except for its softness and somewhat ferruginous taste, it is quite palatable, and on my last visit we used no other for five days. The south spring was found to yield 21 litres and the north 6 litres per minute. The water of the third spring does not run.