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accordingly done by the China and Japan Telephone Co., who commenced re-wiring on October 31, and installed a new switch-board, designed by Mr. W. R. Noble, on December 19.
In December, 7 Delco cells were obtained to form, together with the 3 similar cells procured for the radio set, another 20 volt battery for alternate use with the Tudor battery installed in 1915. A motor-generator to replace the defective Nodon valve was also installed.
In March, 28 Fuller "block" cells of low capacity were purchased from H. M. Naval Yard for the valve of the Radio receiving installation. These cells have now deteriorated, and in anticipation of further deterioration 30 cells of the open type are on order from England.
IX.-MISCELLANEOUS.
Staff. No change occurred in the European Staff during the year. Mr. B. D. Evans, First Assistant, returned from Military Service on August 12th.
The Director acted as Deputy Cable Censor from January 1st to March 28th, and as Cable Censor from March 29th until the abolition of the Censorship on July 23rd.
Cheng Wa So, 6th grade telegraphist, resigned on July 31st to take up a better appointment at Canton. His post was abolished and a 5th grade telegraphist, Leong Kwok Hoon, appointed on September 29th.
Expenditure.-The annual expenditure on the Observatory for the past ten years is as follows:-
Year. Total Expenditure. Increase. Decrease. $ $ $ 1910 21,787.55 601.08 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