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PART III.
Ports or Localities referred to.
United Kingdom.
Firth of Forth
Guernsey
Alderney
Barrow
Barry Belfast
Berehaven
Hartlepool Harwich
Jersey Lough Swilly Milford Haven
Newhaven
Portsmouth Queenstown River Humber
""
Mersey
Tay Tees Thames
Tyne
Blyth
Clyde
Cromarty
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Dover
Plymouth
Falmouth
Portland
Scapa Fyne Sheerness
Canada,
Esquimalt
Halifax
Quebec
Mediterranean.
Gibraltar
Malta
Indian Ocean.
Aden Bombay Calcutta
Colombo
Karachi
Mauritius Rangoon
Madras
China Sea.
Hongkong
Singapore
Africa.
Durban Sierra Leone
Simons bay
Table bay
Australia.
Adelaide
Brisbane
Melbourne Newcastle
Fremantle
Tasmania.
Sydney
Thursday island
Hobart
New Zealand.
Auckland Otago
Port Lyttelton Wellington
West Indies.
Bermuda
Port Royal, Jamaica
PART TV.
Sweeping Operations.
H.M. Vessels are constantly engaged in sweeping operations off ports in the United Kingdom.
Whilst so engaged, they work in pairs connected by a wire hawser, and are con- sequently hampered to a very considerable extent in their manoeuvring powers.
With a view to indicating the nature of the work on which these vessels are engaged, they will show the following signals:
A black ball at the foremast head and a similar ball at the yardarm, or where it can best be seen, on that side on which it is dangerous for vessels to pass.
For the public safety, all other vessels, whether steamers or sailing craft, must keep out of the way of vessels flying this signal, and should especially remember that it is dangerous to pass between the vessels of a pair.