92 WATER SUPPLY IN THE INTERIOR OF NEW SOUTH WALES. 
Phosphoric acid (P2O5)..... sesseseceserees 07 
Sulphuric acid trace 
MOAPDON AORL 60 i ikass. seselncsev essai i 
ROR hee tesrecve is tersasier eiia' ieee’ oe trace 
Decomposable by sulphuric acid— 
Peroxide of iron 3°23 
Alumina 10°68 
Potash (KO) 1:08 
Soda (Na.0) “84 
Silica and silicates, undecomposable by 
sulphuric acid 67°56 
Combustible and volatile substances— 
Moisture at 125° C 7°78 
ss on ignition 1°55 
Total ammonia 
Nitrates traces 
100°01 
Neitker of the above samples of soil show any trace of chloride 
of sodium, which I suppose arises from the fact that being taken 
from near the surface all the most soluble salts had been washed out 
Plants,” it is shown that in the ash of the salt-bushes soda and 
Darling, along both banks of the river, at from 20 to 30 feet below 
the general level of th try, there are st i f intensely 
numbers. That the salts contained in these springs and in wells 
where salt water is found all through the interior of New Sou 
