1917 — Page 321

Blue Books 香港計冊 All

Station: Royal Observatory, Hongkong.

Height above M.S.L. 109 ft.

! Barometer at M.S.L. and

Day.

reduced to gravity at

latitude 45°.

Air Temperature.

1917.

Month of October.

Tension of

Vapour.

Relative

Humidity.

Wind.

Direction and Force.

Amount of

Cloud.

Long. 7 36 41^8 E.

Lat. 22° 18' 13.2′′ N.

Rainfall.

1917.

7 8.

I P.

9 p.

7 a.

I p.

9 p.

Max. Min.

Daily Daily Means, Menus.

7 R.

I p.

9 p.

Daily Means.

1

Oct.

ins

29.883

Jos

in.

%

6

A

Dir. Vol. Dir. Vel. Dir. Vel. (0-10.) points|u.p h. Įpuints.jm.p.lk points. n.p..

jus.

29.889

29.888

77.2

80.2

78.8

80.9

73.5

0.742

77

6 24 7 26 8 26

5.8

0.860

NO CON QUI À LA N

.856

.888

.891

77.3

79.9

78.6

80.5

77.1

.711

6

73

28

28 7 23

4.9

.878

.884

.910

77-4

81.6

79.5

82.3

77-3

.764

76

7

20

22 7 10

2.9

.888

.873

.887

77-9

82.4

78.5

84-3

75.9

.700

68

5

9 2 IO

4.3

4

Lunar halo.

.853

:825

.864

7+-5

80.7

78.7

81.7

73.5

.635 66

5 10 5

3

6.5

.830

.810 .854 73.8

82.0

77.0

82.5

73.6

.616

9 12

3.6

.845

.810

.840

7++

$1.0

75.5

82.0

73.6

.618

67

3

8

14

3 1.6

.8.42

.818

.8++

73.0

82.4

75.7

83.1

72.3

.588

2

II

8

+

0.2

Dew.

9

.876 .845

.874

74.2

79.7

77.9

83.4

73-3

.643

63

2+

7

3

2.2

Lunar halo.

Haze, Dow.

10

.881 .859

.902

74-5

83.5

76.5

84.8

73.8

.58z

бо

2

8 3

6

3

II

.923 .877

+947

73-9

81-4

77.1

82.5

73-7

.660

69

3

3

10 15

7

0.2

12

.956

.962

30.006

75.8

81.0

77.2

81.0

75-7

.695

73

5

9

10 16

I 2

1.2

...

13

30.032

.990

.043

74-3

82.5

77.7

83.6

74.1

.608

63

8

15

5-3

0.010

14

.028

.976

29.998

75.8

79.6

75.4

80.8

75.0

.598

64

10 16

17

3.1

...

15

29.975

.910

•954

72.4

82.6

76.3

83.2

72.4

.643

69

22

16

.930 .877

.922

73-5

86.8

77.2

86.8

73.5

.69+

72

7

76

10

10

1.0

+ 6 10 10

0.4

17

.917

.900

.945

75.6

81.7

77.8

83.4

74.1

.659

69

I

14

10 20 7 22

18

+925

.915

-948 75.8

79.9

76.z

80.8

75-3

.645

69

6

9 22 8 21

19

.922

.933

-952

75-7

79-4

777

80.0

75.6

.731

77

+3

10

20

20

.968

.933 .966

76-5

83-4

77-7

83.7

75.0

.752

76

13

21

-975

.941

.984

73-5

78.9

76.6

79.4

72.6

.707

I 1

10

22

.967 .925

.950

75.4

78.0

76.2

80.2

75.2

.682

75

17

2 I

18

7

23

-943

-931

-942

75-7

79.0

76.1

81.1

75.2

.691

24

-959 .899

.930

75-4

81.2

76.1

82,8

75.2

.730

6

25

*913

.886

.901

74-5

81.1

75-7

82.6

73.9

-708

75

2

26

.871

.841

.831

75-7 77.8

75.2

79.0

74-7

.673

76

27

.811

28

-766 +775

73.9

77.9

75.0

79.0

73.4

.718

7

-799

,811

.880

74.6 78.9 76.8

80.4

74.3

-777

84

7

aax in 7

9

10

10

29

.897

.922

.969

73.4 72.1 169.5

75.0

68.5

.713

91

29

30

-957

.955

.966

68.9

70.1

72.8

72.9

66.9

.639

24

31

.921

.908

.899

72.2

75.5

74.0

75.9

70.6

.692

8;

7 18

으므

906 76

18

18

21

18

20

= ∞0 0 1 +9

Se coun 00 00\0 00 00 ~ ~ ca coma N

2.3

2.1

7

3.8

***

3

21

2.5

17

7.2

0.030 0.145

23 7.0

20 9

0 aw+

3.6

1.8

0.9

5.2

***

8 II 3.6

Lunar corona. Lunar corona,

8 ZO

3.7

0.035

18

10.0

2.390

8

22

10.0

7

8

9-7

Sums,

Means 29.910

29.889

29.919

74-7

80.1

76.5

81.3

73.8

0.679 73

6.1 12.8 10.1 15.8 8.6 13.7

3.8

3.470

In reducing the barometer readings to gravity at latitude 45o, a constant correction of −0·055 inch has been applied.

Remarks.

(Zb-10)

320

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