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RESULTS OF THE EXAMINATION OF SOIL FROM HONG KONG.
Imperial Institute No. M.3283.
Reference: E. Sub-soil. Kuei Island.
Description: Yellowish loam.
Date: 31st May, 1929.
RESULTS OF EXAMINATION.
Preliminary mechanical analysis on the entire soil, which was air-dried before examination.
Size of particles
in mm.
Per cent.
Stones and gravel
Over 2.0
"Fine earth'
Under 2-0
*
Mechanical analysis of "Fine earth"
5.02
94.98
Size of particles in mm.
Fractions dried at 105°C.
Fractions
ignited.
per cent.
per cent.
Coarse sand
2-0 to 0·2 ...
15.45
15.13
Fine sand
Silt
Clay
0·2 to 0·02
20.71
20.22
:
0·02 to 0-002
28.42
27.30
0.002 and under
29.08
25.43
7
Moisture at 105°C
Matter soluble in water
Loss by solution in HC1
Calcium carbonate
Loss on ignition
*
Total
:
:.
:
:.
4.68
4.68
0.059
0.059
0.18
0.18
nil.
nil.
7.25
98.58
100.25
*Not including moisture at 105°C. or CO, from carbonates.
(Containing sulphates equivalent to sulphuric anhydride (SO) 0.023 per cent.
Containing chlorides equivalent to chlorine (C1)...
0:020 per cent.
Reaction of soil: Faintly acid ...... pH value 6.37
(Quinhydrone method).
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