3. The Composition of the Water of the Lake of 
Tiberias, 
By W. A. K. Curistiz, B.Sc., Pa.D. 
The sample of water from the Lake of Tiberias whose 
analysis is given below was collected by Dr. Annandale at 7-30 
a.m. on October 27th, 1912, a mile south of Tiberias. It was 
token at the surface from a steamer plying on the Lake. 
One true liter contains the following i inorganic constituents 
in grams, the results being expressed in the ionic form 
Na 0°12] 
Mg 0°023 
Ca 0°049 
Cl 0-239 
So, 0016 
Co, 0:075 
SiO, 0-013 
TotaL .. 0°536 
Its err is 536 parts per million, its specific gravity 
100043 (5 :) or 0°99775 (= in vacuo J. 
24° 
The amount of water peat for analysis was unfortu- 
nately insufficient for an exact or detailed examination, and 
rom perfect analytically, and though the composition of the lake 
water will undoubtedly vary with the locality of the sampling 
place and the time of year, the figures are sufficiently accurate 
to show how remarkably the water of the Lake of Tiberias 
differs from that of other lakes with an outflowing stream, and 
from that of rivers, with which the water from lakes with an 
outlet has of course many similarities. The prevailing charac- 
teristics of analyses of ordinary lake and river waters are a high 
percentage of carbonate and of calcium, and a low percentage 
of chloride and alkalies. Here we have the reverse. The compo- 
sition of this water resembles that of no other river or lake 
with an outflow of which I have found data, with the excep- 
tion of some ofsthe rivers flowing from arid saline regions in the 
middle of the United States, and of the Jordan itself. On the 
; ! Published with the permission of the Director, Geological Survey 
of India 
