F 16
A Milne-Shaw machine with North and East components, and a smoked paper machine for visual observations were decided upon. The latter arrived in Hongkong on January 25, 1921.
The Director visited Mr. J. J. Shaw's Seismological Observatory at Birmingham and had the opportunity of seeing one of his seismographs dismounted and re-assembled. He also discussed several points in connection with the construction and maintenance of a two-component outfit for Hongkong.
Mr. Shaw has improved the Milne Seismograph by electromagnetic damping and by magnifying the movements of the boom (shorter than the Standard Milne boom) by reflecting a beam of light from an exceedingly light, finely pivoted mirror of half-metre focus, coupled to the end of the boom by an equally light, ingenious, and almost frictionless device. Improved calibrating and adjusting arrangements are also provided.
Staff—No change occurred in the European Staff during the year. During the absence on leave of the Director, from March 2 to December 4, Mr. C. W. Jeffries, the Chief Assistant, acted as Director and Mr. B. D. Evans, First Assistant, acted as Chief Assistant.
Leong Kwok Hoon, 5th grade telegraphist, resigned on May 31, and was replaced by Ko Chuck Shan, who, being found unsuited to the post, was superseded by Ip Chun Woo on August 1.
Chan Iu Fong was promoted to the post of IVth grade telegraphist at the Post Office on December 9 and was replaced by Ng Hung Kui on December 24.
Expenditure. The annual expenditure on the Observatory for the past ten years is as follows:-
Year Total Expenditure Increase Decrease $ C. +3 C. $ C. 1911 23,353.02 1,565.47 1912 22,595.08 757.94 1913 24,255.49 1,660.41 1914 25,398.31 1,142.82 1915 23,233.12 2,165.19 1916 21,977.78 1,255.34 1917 26,890.50 4,912.72 1918 20,028.24 6,862.26 1919 23,450.57 3,422.33 1920 25,965.66 2,515.09F 16
A Milne-Shaw machine with North and East components, and a smoked paper machine for visual observations were decided upon. The latter arrived in Hongkong on January 25, 1921.
The Director visited Mr. J. J. Shaw's Seismological Observatory at Birmingham and had the opportunity of seeing one of his seismographs dismounted and re-assembled. He also discussed several points in connection with the construction and maintenance of a two component outfit for Hongkong.
Mr. Shaw has improved the Milne Seismograph by electromagne- tic damping and by magnifying the movements of the boom (shorter than the Standard Milne boom) by reflecting a beam of light from an exceedingly light, finely pivoted mirror of half-metre focus, coupled to the end of the boom by an equally light, ingenious, and almost frictionless device. Improved calibrating and adjusting arrangements are also provided.
Staff-No change occurred in the European Staff during the year. During the absence on leave of the Director, from March 2 to December 4, Mr. C. W. Jeffries, the Chief Assistant, acted as Director and Mr. B. D. Evans, First Assistant, acted as Chief Assistant.
,
Leong Kwok Hoon, 5th grade telegraphist, resigned on May 31, and was replaced by Ko Chuck Shan, who, being found unsuited to the post, was superseded by Ip Chun Woo on August 1.
Chan Iu Fong was promoted to the post of IVth grade telegra- phist at the Post Office on December 9 and was replaced by Ng Hung Kui on December 24.
Expenditure. The annual expenditure on the Observatory for the past ten years is as follows:-
Year.
Total Expenditure.
Increase.
Decrease.
$
C.
+3
C.
$
C.
1911
23.353.02
1,565-47
1912
22,595.08
757.94
1913
24,255-49
1,660.41
1914
25.398.31
1,142.82
1915
23.233.12
2,165.19
1916
21,977.78
1,255.34
1917
26.890.50
4,192.7
2
1918
20,028.24
6,862.26
1919
23,450.57
3.422.33
1920
25,965.66
2,515.09
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