nuisance. 
Webb’s Grant, Botany, 4 
686 PROCEEDINGS OF SECTION 
Hie 
Government Laboratory, 
Sydney, Sth July, 1889. 
Analysis of a sample of sewage effluent received from the Medical 
Adviser, 21-6-89. Labelled No. 2. 
Appearance in two-foot tube ... : 
Odour on heating to 100 deg. Fahy. ... 
Chlorine as Chlorides 
Phosphoric Acid in Phosphates 
Nitrogen in Nitrates and Nitrites 
Do. equivalent in Nitric Acid . 
Do. existing as free Ammonia ... 
Organic Nitrogen, or Albuminoid Ammonia... 
Oxye en absorbed in 15 min. at 80 dee. Fahr. 
De do. 4 hours do. 
Hardness in degrees, Clark’s scale, before 
boiling 4 
Loss on ignition . 
Poisonous metals 
Total solid residue, dried at 220 deg. Fabr. 
General observations on the character of the water: 
Well 20 feet from tank. 
Results expressed in 
Grains per 
gallon. 
Brown pe 
sh 
The 
Parts per 
100,000, 
aty tint 
eht 
13°80 
ces 
80 
14 
5°08 
14°8 
ne 
43°6 
composition 
is such as to allow it to be passed into tidal rivers without causing a 
(Siened) WILLIAM M. HAMLET, F.LC., 
Government Analyst. 
Government Laboratory, 
Sydney, 16th September, 1889. 
Analysis of a mates of water received from the Sewerage Farm, 
-9-89. 
Labelled Effluent marked “ A. 3 
Results expressed in 
Grains per 
gallon. 
Appearance in two-foot tube ... 
Odour on heating to 100 deg. Fahr. 
Chlorine as Chlorides 
Phosphoric Acid in Phosphates 
Nitrogen in Nitrates and Nitrites 
Do. equivalent in Nitric Acid ... 
Do. existing as free Ammonia ... : 
Organic Nitrogen or Albuminoid Ammonia... 
Oxygen absorbed in 15 min. at 80 deg. Fahr. 
Do. do. 4. hours do. 
Hardness in degrees, Clark’s scale, before 
boiling 
Hardness 
boiling 
Poisonous metals 
Total solid residue at 220 deg. ‘Fahr. 
in degrees, Clark’s scale, after 
No 
Parts per 
100,000. 
31°36 
General observations on the character of the 
water : 
44°8 
The analysis 
