in the Aegean.

The extensive anti-submarine patrol work round the British Isles and in
the Mediterranean was touched upon, there being "heavier than air"
stations at the time at

Houton Bay.
Dundee.
South Shields.
Bembridge.
Calshot.
Portland.
Killingholme.
Yarmouth.
Felixstowe.
Westgate.
Dover.
Newhaven.
Cherbourg.
Plymouth.
Newlyn.
Scilly.
Fishguard.

Steps were being taken to extend the number of stations as soon as
possible, the new programme including stations at such places as

Padstow.
Wexford.
Queenstown.
Berehaven.
Loch Foyle.
Loch Ryan (or in the Hebrides).
Shetlands.
Peterhead.

In the event of the United States being in a position to co-operate in
the work, it was recommended that the three main seaplane stations in
Ireland should be taken over by the Americans, and equipped, manned and
controlled entirely by United States personnel.

In regard to the convoy system a full description of the whole
organization was given, with the results up to date, and details of the
vessels available and still needed for its protection.

Full information was afforded on the subject of the arming of merchant
ships and fitting other defensive measures to them, and the routeing
system in use for merchant ships was described in detail.

In the remarks on our anti-submarine warfare it was pointed out that
anti-submarine measures were carried out both on the surface, under
water, and in the air.

The surface measures were described as follows:

In twelve of the twenty-two areas into which the waters round the United
Kingdom were divided, regular _hunting flotillas_ were at work,
comprising trawlers and motor launches fitted with hydrophones. Before
the institution of the convoy system a few fast vessels, such as
destroyers or "P" boats, had been formed into hunting flotillas, but the
convoy work had necessitated the withdrawal of all these vessels, and
the work of the flotillas had suffered in consequence, the speed of
trawlers being too slow to offer the same prospect of success in such
anti-submarine measures. The flotillas of motor launches which had been
formed were of considerable utility in fine weather, but they could only
operate in comparatively smooth water.

At the time of Admiral Mayo's visit a force of thirty-two trawlers to
work with about six sloops or destroyers was being organized as vessels
became available, to operate in the North Sea with a view to engaging
enemy submarines on