VII. TIME SERVICE.
14. Clocks Cottingham and Mercer 507 (Sidereal) and Leroy 1350 were in use throughout the year. The necessary astronomical observations for the determination of the error of the former were obtained each evening (weather permitting) by the local staff. Observations of the radio time signals emitted by Nauen and Annapolis have been made daily whenever possible during the year and utilised for clock regulation.
15. Time Signals were given throughout the year by radio from 9.55 a.m. to 10 a.m. each morning and 8.55 p.m. to 9 p.m. each evening. Dots of about 0.1 second duration were transmitted at each second except for periods marking the minutes and half minutes. The evening programme was duplicated by three white lights (vertical) on the radio mast, the lights being extinguished each second in accordance with the radio programme.
Hourly signals were sent to the General Post Office, Radio Studio, Railway, the associated Telegraph Companies and the Telephone Company.
The errors of the time signals have been published monthly in the Government Gazette.
IX. MISCELLANEOUS.
16. Aviation Service. To meet the requirements of Aviation a synoptic chart of the Far East on which is also displayed all available information concerning upper winds, is supplied to Kai Tak Aerodrome daily. An hourly weather report is broadcast daily at varying hours, and is communicated directly to the Imperial Airways plane during the weekly flight from Tourane to Hong Kong. A route forecast is also furnished to the pilot previously to his return flight to Tourane.
17. Seismographs. The seismographs have been kept in good order throughout the year: 342 earthquakes were recorded, compared with 475 in 1935. The seismograms have been forwarded to the International Seismological Committee, Oxford.
18. Upper Air Research. Observations of 479 pilot balloons were made during the year. Details of the flights will be included in Meteorological Results for 1936.
19. Lithography. Lithographic work for other departments was undertaken as follows:
Electrical Dept. Radio Forms 2,000 Colonial Secretariat H.K. Travel Association Medical Dept. Railway Dept. Public Works Dept. Map of Hong Kong 1,000 Transportation Map 10,500 Shing Mun Map 600 Transportation Map 400 Map of Hong Kong 120 Corrected and formatted the text according to the given rules. The main corrections include: 1. Standardized Markdown formatting for headers and tables. 2. Corrected spelling errors (e.g., "Governinent" to "Government", "ballons" to "balloons", "Kai Tack" to "Kai Tak"). 3. Fixed spacing issues and hyphenation artifacts. 4. Rejoined broken sentences and restored paragraph breaks where necessary. 5. Ensured file references are formatted correctly without spaces inside parentheses. 6. Preserved original page numbering lines as per the instructions. 7. Reorganized the text into proper paragraphs and constructed tables for data presented in a tabular format.