660922-1888-Magnetic-Observation-1887-Observatory — Page 2

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THE HONGKONG GOVERNMENT GAZETTE, 31ST MARCH, 1888.

OBSERVATIONS OF HORIZONTAL MAGNETIC FORCE.

Time of

DATE.

1887.

H.K.M.T.

one Vibra- tion.

Tem- perature, Log mX.

Cent.

Value of m.

Distance in

Tem-

m

Deflec-

H.K.M.T.

Cent.

Centi- perature, tion.

Log I

Value of Obser-

X.

ver..

Mean,

meters.

S

January 15,... 3h. 13. p.

February 14,... 3 7 p.

March 16.... 2 31

p.

April

15,...

3 10 p.

3.4933

3.4860 18°.0 2.36582

3.4883 20..9 2.36575

3.4859 17 .1

27 .7

643.62

3h. 47m. p.

30

17°.5

7° 37' 17"

3.25143

0.36074 F.G.F.

40

3 11 33

642.82 3 36 p.

30

20 .8

7 36

1

3.25042

0.36112

40

3 10 40

2.36584

642.57 3 47 p.

30

16 .9

7 36 17

3.25000

0.36134 M.A.

40

3 10 47

2.36580 642.83 4 25 P.

30

25 .5

7 34 52

3.25040 0.36116

21

40

3 10 23

May

14,... 3 6 p.

3.4940

26 .5

2.36540 641.99

3 33 p.

30

25 .2

7 33 51

3,24966

0.36130 F.G.F.

40

3 10 12

June

14,... 3 9 p.

3.4991

29 .6

2.36469

641,26 4 15 p.

30

28 .7

7 32

6

3.24937

0.36113 M.A.

40

3 10 5

July

15,... 2 12 p.

3.5020

30 .7

2.36392

639.59 3 18 p.

30

29.3

7 30 56

3.24787

0.36143

"

40

3 9 11

August 16,... 2 35 p.

3.5046

26 .2

2.36278

638.41 3 40 p.

30

25 .6

7 31 7

3.24742

0.36114

29

40

3 9 19

September 14,........ 3 13 p.

3.5108

October 14,... 2 44 p.

November 14,... 2 49 p.

December 14.... 3 5

3.5141

3.5135

3.5142 p.

31 .0

30 .5

25.3

2.36224 636.97

2.36146

3 52 p.

30

29,5

7 28 56

3.24600

0.36151 F.G.F.

40

3 8 20

635.97

3 39 p.

30

28 .6

7 28 27

3.24542 0.36143 M‚A.

40

3 8 11

2.36048 634.36

3 25 p.

30

24 .1

7 28 6

3.24418 0.36153

F.G.F.

40

3 8 0

20.6 2.35930 633.26

3 33 p.

30

19 .8

40

7 28 40 3 8 10

3.24386

0.36117

RESULTS OF MAGNETIC OBSERVATIONS IN 1887.

MAGNETIC FORCE.

Month.

1887.

Declina-

tion, East.

Dip, North.

ENGLISH UNITS.

METRIC UNITS.

C. G. 8. UNITS.

X

Y Total Force

X

Y

Total Force

X

Y

Total Force

January,

February,

0° 43′ 36" 32° 23′ 40′′:

7.8238

4.9641

9.2657

3.6074

2,2888

41 50

23 47

7,8322

4.9696

9.2768 3.6112

March,

42 34

22 19

7.8368

4.9680

9.2790 3.6134

April,

42 46

21 0

7.8328

4.9613

9.2720

3.6116

2,2876

May,

41 0

24 4

7.8360

4.9729

9.2807

3.6130

2.2929

June,....

41 11

23 54

7.8322

4,9700

9.2760

3.6113

2.2916

4.2723 0,36074 0.22888 0.42723

2.2914 4,2769 0.36112 0.22914 0.42769

2.2906 4.2784

4.2751

4.2792 0.36130 0.22929 0.42792

4,2770 0.36113 0.22916 0.42770

0.36134 0.22906 0.42784

0.36116 0.22876 0.42751

July,

42 50

22 33

7.8988

4.9699

9.2816 3,6143

2.2916

4.2796 0.36143 0.22916 0.42796

August,.......

42,30

20 9

7.8325

4.9584

9.2700

3.6114

2.2862

4.2743

0.36114 0.22862 0.42743

September,..

40 28

22 29

7.8404

4.9709

9.2834

3.6151

2.2920

4.2805

0.36151 0.22920 0.42805

October,

41 48

21 32

7.8386

4.9666

9.2796

3.6143

2,2900

4,2787

0.36143 0.22900 0.42787

November,

42 0

21 34

7.8410

4.9681

9.2824

3.6153

2.2907

December,

42 54

21 46

7.8332

4.9639

9.2736

3.6117 2,2887

4.2800

4.2759

0.36153 0,22907 0.42800

0,36117 0.22887 0.42759

Mean,..... 0° 42′ 7′′ 32° 22′ 24′′

7.8349

4.9670

9.2766

3.6125

2,2902

4.2773

0.36125 0.22902 0.42773

Hongkong Observatory, 19th December, 1887.

W. DOBERCK, - Director.

I