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land visible to ships approaching coast from the China Sea, and that light fixed upon it may be retained in view for 20 miles after a ship has left it behind, or until it is able to pick up the actual Green Island light, an advantage that would be lost if the light were placed elsewhere, as the other islets are so situated as to cause them to shut each other out of view from the direction of -
The highest point of the Rap Rock is only about 90 feet above mean sea level.
In order therefore to enable the proposed light to be seen at a distance of 20 geographical miles, or nearly about 110 feet high will be requisite.
"The configuration of the rock is steep, almost perpendicular nearly on all sides, but there are one or two places that shelve down to the waters edge, landing feasible would be made on a very calm day. As far as I have been able to judge, access can be made effectual at all times in fair weather by use of a derrick crane with a fifty foot jib, a lodgement for the foundation of which can be made by cutting out a place in the solid rock above the reach of ordinary storm waves.
There are many days during the months of March and April when the sea is so smooth as a sheet of glass, and this exceptional state might be availed of to effect a first landing of stores, materials and ...
I believe it is a principle of coast lighting to select that position for a lighthouse which best meets maritime requirements and to subordinate to this all other considerations in respect of increased subsequent cost and trouble in the maintenance.
If therefore following this ...
Bury.