The Treaty Ports of China and Japan (1867): View pages

...  The sailing distance round Hongkong estimated in 1843, 
(Sir E. Belcher's survey) at 26.85 miles, though a walk round it, foJ— 
lowing the irregular indentations of the coast, gives a distance of some 
few miles more. Its extreme length is nearly nine, and its greatest 
breadth a little more than four miles. 

   Its formation is volcanic, a rugged mountainous ridge running from 
E. to W. with six peaks of from 1,016 to nearly 1,900 feet in height 
above the sea. In Sir E. Belcher's chart the peaks are named as