Q 15
Surveys.
24. Levelling.-Preliminary work was commenced in Kowloon in August. This consisted in running a line of levels across Kowloon Peninsula from Kowloon Dock at Hung Hom to Cosmopolitan Dock at Tai Kok Tsui, connecting up various existing Bench Marks on the way, which had been fixed and valued by the Drainage Office previously at various periods. From the records of tidal observations kept by the Hong Kong and Whampoa Dock Company at Hung Hom and the Cosmopolitan Dock, those taken at the latter place were accepted as being more accurate. The tidal readings over a short period of one month were analyzed, and an approximate Mean Sea Level was found, and the value of the existing Bench Marks as given by the Drainage Department were approximately checked. No great error was found. As the tides in Hong Kong vary considerably according to the season, a Mean Sea Level to be in any degree accurate must be taken over a long period. The mean tidal readings for a period of one year will shortly be completed, and a datum established. These readings will continue to be collected annually, and a M.S.L. eventually adopted. Bench Marks, each consisting of a brass rod sunk in rock and cement and covered by an iron picket box, have been fixed at Cosmopolitan Dock, Tai Po Road at the crest of the Hill near Kowloon Reservoir, Shatin Railway crossing, Tai Po, and Fanling Station, and one Staple Bench Mark driven into the wall on the latrine at Tai Po Market. A total distance of 30.1 miles has been double levelled, and approximate heights fixed for 5 Bench Marks, 25 Staple Bench Marks, and 15 Milestones along the Kowloon-Fanling Road via Shatin and Tai Po, and 5 Milestones along the Castle Peak Road. This work is being continued.
25. Boundary Stones.-Stones were fixed to define the boundaries of 80 lots in Hong Kong and 178 lots in Kowloon and New Kowloon.
26. New Territories.-Several centre lines of proposed new roads and an area of about 4 acres for proposed building lots at Un Loong was set out.
Lots 4543 & 4544 D.D. 51 containing about 3 acres were set out, and Boundary Stones fixed.
Lots 730, 755, 756 & 757 D.D. 181 were surveyed, the area being 2 acres and the chainage 3,400 feet. Boundary Stones were fixed to lots 730 & 755.
The Kwanti Race Course was surveyed, the total area of the survey being about 80 acres, and the chainage, which included that necessary for the Sun Wei Military Camp survey, was 29,200 feet.
The following surveys were also carried out:-
An extensive survey of about 44 acres was carried out at Ku Tung near Sheung Shui for a proposed new layout scheme.
Q 15
Surveys.
24. Levelling.-Preliminary work was commenced in Kow- loon in August. his consisted in running a line of levels across howloon reninsula from Kowloon Dock at Hung Hom to Cosmopolitan Dock at Tai Kok Tsui connecting up various existing Bench Marks on the way which had been fixed and valued by the Drainage Office previously at various periods. From the records of tidal observations kept by the Hong Kong and Whampoa Dock Company at Hung Hom and the Cosmopoli- tan Dock those taken at the latter place were accepted as being more accurate. The tidal readings over a short period of one month were analyzed and an approximate Mean Sea Level was tound and the value of the existing Bench Marks as given by the Drainage Department were approximately checked. No great error was found. As the tides in Hong Kong vary considerably according to the season a Mean Sea Level to be in any degree accurate must be taken over a long period. The mean tidal readings for a period of one year will shortly be completed and a datum established. These readings will continue to be col- lected annually and a M.S.L. eventually adopted. Bench Marks, each consisting of a brass rod sunk in-rock and cement and covered by an iron picket box, have been fixed at Cosmo- politan Dock, Taipo Road at the crest of the Hill near Kowloon Reservoir, Shatin Railway crossing, Tai Po, and Fanling Station and one Staple Bench Mark driven into the wall on the latrine at Taipo Market. A total distance of 301 miles has been double levelled and approximate heights fixed for 5 Bench Marks 25 Staple Bench Marks and 15 Milestones along the Kowloon Fan- ling Road via Shatin and Taipo and 5 Milestones along the Castle Peak Road. This work is being continued.
25. Boundary Stoncs.-Stones were fixed to define the boundaries of 80 lots in Hong Kong and 178 lots in Kowloon and New Kowloon.
26. New Territories.-Several centre lines of proposed new roads and an area of about 4 acres for proposed building lots at Un Loong was set out.
Lots 4543 & 4544 D.D. 51 containing about 3 acres were set out and Boundary Stones fixed.
Lots 730, 755, 756 & 757 D.D. 181 were surveyed, the area being 2 acres and the chainage 3400 feet. Boundary Stones were fixed to lots 730 & 755.
The Kwanti Race Course was surveyed, the total area of the survey being about 80 acres and the chainage which in- cluded that necessary for the Sun Wei Military Camp survey was 29,200 feet.
The following surveys were also carried out:-
An extensive survey of about 44 acres was carried out at Ku Tung near Sheung Shui for a proposed new layout scheme.
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