Surveys.
20. Traverses.-These were run from Causeway Bay to Shau Ki Wan connecting with the Triangulation stations at North Point, Quarry Bay and Taikoo, and permanent marks were established at various points, the distance being nearly 5 miles. A traverse was also run from the Triangulation station at Stanley Gap through Repulse Bay and Aberdeen connecting with main traverse at the junction of Mount Davis and Pokfulam Roads, and the Triangulation stations at "Overbays" (Repulse Bay), Kai Lung Wan and Pokfulam Reservoir, the distance being 9.12 miles.
21. Triangulation.-The triangulation mentioned in the Report for 1926 was completed. Monuments were erected at Jardine's Lookout, Mount Butler, Hill 800, Violet Hill, Boa Vista, Red Hill and Shek O Gap. Observations were taken from these stations, and, in addition, from Partridge Hill, Channel Rocks, Stanley Mound, Mount Collinson, Shek O and Wong Ma Kok, the whole being completed and tied into the main triangulation of the Colony with very good results.
In the New Territories, beacons were erected at Tate's Cairn, Hill 1610 Sha Tau Kok, Ping Chau Island, Kat O, Shek Ngau Chau, Hill 1344, Tai Po, Pat Sin, Port Island, Sharp Peak, Ma On Shan, Peak A, Long Ket, High Island, High Junk Peak and Basalt Island, most of the field work being well advanced. The observations from these points were well advanced by the end of the year, and it is hoped to complete the whole of them and the computations in the coming year.
22. Revenue Surveys and General.-Surveys were made for plans to be attached to Crown Leases of 270 lots, and of 5 areas to be sold by auction.
Centre lines were laid down for various streets and permanent marks fixed; boundaries of many lots were set out for the Drainage, General Works, and Roads Offices. In Hong Kong, 37 frontage lines to streets were checked as well as 84 in Kowloon and New Kowloon. Boundaries of 64 lots in Hong Kong and 108 in Kowloon and New Kowloon were defined on the ground. Permanent marks at the intersection points of proposed streets have been fixed and a plan was prepared showing the setting out of the district between To Kwa Wan and Prince Edward Roads.
Contour surveys were made of the hillside adjoining Wong Nei Chong and between Staunton Creek, Aberdeen, and Deep Water Bay Brickworks, the areas being 6 and 78 acres respectively. A survey of the area occupied by the Country Club at Shek O and the adjoining coast line was commenced towards the end of the year.
In Kowloon, surveys of various areas aggregating 146 acres were made during the year.