71 : III : : -04 : a; ^ -06 CaCla.
•06 — "04 = "02 Ca used.
1-52 — "02 = i'5 Ca remaining.
31 : 41 : : •oy : X — = -09 Ca (NOaja.
•09 — -07 =: "02 Ca used.
i-j — -02 = i'48 Ca remaining.
12 : 17 : : -79 : * = I-I2 CaS04.
I • 1 2 — -79 := "33 Ca used.
1-48 — "33 ^ l';5 Ca remaining.
2:5:: 1-15 : a; = 2-88 CaCOs.
2:7:: 0-27 : x,^ "95 MgCOs.
M



l62



WATER.
Grains per gall


Sodic Chloride ....
I -04


Calcic Chloride


O'o6


Calcic Nitrate


0-09


Calcic Sulphate ....
I-I2


Calcic Carbonate ....
2-88


Magnesium Carbonate


0-9S


Silica, Oxide of Iron, and Alumina.
0-26


Organic Matter ....
0-27



6-67

Remarks. — Solids gave a slight odour of peat on ignition. Colour
(before and after filtration) brownish-yellow. Suspended matter very
small. Reaction : very slightly alkaline.
Owing to the small proportion of incrustating salts present,
this water is of first class quality for use in steam boilers.
The following ingredients were obtained by Stillman in a
sample of water by the method described on the opposite
page :—

Grains per
U.S. gallon.
Silica 0-4771

SO3 I'20I2

CI 0-3206

K2O o-02gi

NaaO 0-3615

MgO 0-4490

CaO I'I3I3

FeaOaAlaOs 0-2973

Organic I'I2S4

Carbonic Acid 0-7989



Oxygen in excess of CI



6-1914
0-0932

6-0982



Having determined the component parts of the water residue
in grains per gallon, it becomes necessary to unite these in
chemical union, as near as possible, as they exist in the water.
