680203-1882-Observatory-Major-Palmer-s-Report-on-correction-of-Table-IV- — Page 1

988

THE HONGKONG GOVERNMENT GAZETTE, 16TH DECEMBER, 1882.

GOVERNMENT NOTIFICATION.—No. 490.

OBSERVATORY.

The following letter, with its enclosure, from Lieutenant-Colonel PALMER, R.E., is published for general information.

By Command,

FREDERICK STEWART,

Acting Colonial Secretary.

Colonial Secretary's Office, Hongkong, 16th December, 1882.

HONGKONG, 9th December, 1882.

SIR,-On re-examining the computations of the latitude of Mount Elgin, the results of which were given in my paper published in the Government Gazette of the 4th of last March, I have detected two small arithmetical errors in the fifth column of Table IV, page 237, which slightly affected the figures in the sixth and seventh columns, and introduced a minute error of 0".02 in the final resulting latitude. I have therefore revised the calculations, and I have the honour to forward herewith the Table, &c., as corrected, to be substituted for the latter half of page 237 of the Gazette.

I have the honour to be,

Sir, Your obedient Servant,

The Honourable

THE AGTING COLONIAL SECRETARY,

&c.,

&c.,

&c.

TABLE IV.

H. S. PALMER Lieutenant-Colonel, R.E.,

FINAL LATITUDE AND PROBABLE ERROR.

No. of

No. of obs.

n

W=.

pair.

=n

1.12

wl

V

2

WV

#

#7

1 2 3 4 10 CO 2 ∞ ∞

4.46

10.23

45.63

1.66

12.29

3

2.68

13.05

34.97

1.16

3.61

1

0.89

13.97

12.43

2.08

3.85

3

2.68

14.05

37.65

2.16

12.50

3

2.68

10.38

* 27.82

1.51

6.11

2

1.79

11.57

20.71

0.32

0.18

7

2.68

12.53

33.58

0.64

1.10

8

1.79

12.19

21.82

0.30

0.16

9

1.79

13.29

23.79

1.40

3.51

10

0.89

11.70

10.41

0.19

0.03

11

2.68

10.29

27.58

1.60

6.86

12

2.68

9.84

26.37

2.05

11.26

13

1.79

13.16

23.56

· 1.27.

2.89

14

1.79

11.16

19.98

0.73

0.95

15

2

1.79

13.12

23.48

1.23

2.71

16

3

2.68

13.36

35.80

1.47

5.79

17

2

1.79

9.86

17.65

2.03

7.38

18

1

0.89

11.70

10.41

0.19

0.03

19

2

1.79

12.49

22.36

0.60

0.64

20

0.89

13.47

11.99

1.58

2.22

21

0.89

10.73

9.55

1.16

1.20

22

0.89

13.14

11.69

1.25

1.39

23

0.89

9.89

8.80

2.00

3.56

24

1

0.89

13.56

12.07

1.67

2.48

25

0.89

9.25

8.23

2.64

6.20

26

0.89

13.19

11.74

1.30

1.50

27

0.89

11.82

10.52

0.07

0.00

28

0.89

14.46

12.87

2.57

5.88

W

48.22

X = 573.46

V = 106.28

Here, W48.22, X=573.46, V—106′′.28, and M = 28.

whence, by (7) and (8),

Therefore,

L=11′′.89 ·

é = 0.19

LATITUDE OF CENTRE OF OBSERVING PIER — 22° 18′ 11.89 + 0′′.19

(0".19 19.2 feet).

= =