Table 11.-Result of analyses of waters from various sources.

Results expressed in Grains per Imperial Gallon (1 in 70,000).

Total

Date.

Sitnation.

Depth.

Solid

Matter Chlorine.

Saline

Ammonia.

dried at

noid

Ammonia.

100° C.

Oxygen Nitrogen Albume-absorbed in ! in 4 Nitrates Nitrites. hours at . and 80° F. Nitrites.

Sugar Test for the Detection of Sewage.

Poisonous

Metals.

General Remarks.

391 --

1905.

Jan. 10

Stream at Tai Ping Tong, (1)..

3.8

.6

Absent.

.0042

.008

.012

10

Do.

Absent. No Sewage indicated.

Absent.

(2).

3.7

.0014

>>

.006

.012

10

Do.

19

(3).

>>

"

>>

3.7

.0014

19

99

Stream at Swatow,

3.

,005

.016

}}

119.0

19

73

69.3

.0070

.0042

.484

.016

+5

19

Do.

""

6.8

1.4

Absent.

.0014

.176

Absent.

19

Do.

"

(3)

>>

มง

5.5

.2

.0028

91

.144

"

}}

19

Do.

15

(4)

11.0

2.8

.0028

57

,0014

.214

.004"

April 1

Well at Caroline Hill Road,

14 feet.

>>

CA

18.5

"}}

4.2

.0028

.0056

.022

.444

June 21

Well at 624, Queen's Road Central,., 13

"

No Sewage indicated.

28.0

>>

7.0

.0028

.0014

013

1.036

July 13

Stream at Tai Hang,

"

"}

4.0

.8

Absent.

,0056

.023

.032

22

"

Well situated at No. 4, Castle Road, 51 feet.

No Sewage indicated.

6.5

"}

1.5

.0028

.0056

.009

.329

31

,,

Water from a house at West Point,.

31

15

5.7

}}

6

Absent. Absent.

,012

Absent.

Sept. 27

Well at Taku Ling Police Station,

25 feet.

}}

16.0

}}

6.3

Deposit of iron oxide.

.013

Oct. 23

Well at Green Island, (1)

"

.350

"}

77

"

3

10.0

35

.5

.009

E

15

Absent.

23

30

Do. Well at Ma Tau Wai, (A)

(2)

57

5

9.5

.5

"

.0042

.0084

.041

.024

"

10

30

Do.

(B)

10

29.

9.7

1.7

>

.0028

.0050

.017

.144

71

80

1.4

.0042

.0042

.015

.230

Dee. 7

Water from the Pearl River, (A).

>>

5.0

.4

.0028

.0042

.013

.008

Do.

19

(B)

5.5

.6

.0042

.0042

.040

.008

Do.

"

(C)

7.0

.8

,0042

.0070

.017

.008

རྒྱུ སྙ ཝཱ ནྟ ཌརྟདྷ

"}

"

51

Vegetable debris and water

}}

>>

[animalcula.

}}

19.

}}

"

13

29

Do.

11

(D).

››

5.0

.0056

"}

.0028

.040

Absent.

"

"}

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