Then we leave the little crowd of anchored ships below and sail on into the mist to the lonelier levels of the sea. Now and then we overtake some heavily-laden freighter, low in the water, pounding outwards on its hazardous journey, its plain unlettered sides showing that it is a vessel of the Allies.
In front of me I wind a little handle. This causes the wireless set to connect with the engine, and the little motor revolves rapidly. I press the brass key, and a blue spark spits and splutters inside one of the boxes. Then I call up the seaplane station far behind me in the mist and record my position. Putting the telephone-receiver over my ears, I hear above the roar of our engines the sharp staccato signals of some warship below us on the grey sea. As I move a lever round a series of studs I hear it more clearly or more faintly as I get more or less in "tune" with it. Then I remove the receiver, having tested the wireless instruments and found them correct, and once more look over the side to the chilly sea.
We fly over three or four little trawlers steaming slowly along, dredging the waterway for mines. Then over two leaning masts of some wreck, which pierce the water like thin lances. Next we pass above a Belgian relief ship, advertising its nature by means of innumerable placards and flags and colours, which are yet not sufficient to keep it immune from the Germans and their unreliable promises. Now it is a familiar line of mud-hoppers carrying a load of dredged mud to some deep dumping-ground. Now over a couple of lean grey torpedo-boats, nosing everywhere, carefully and suspiciously, protecting the Channels.
So at times over ever-varying craft, and at times over grey wet loneliness, we travel on in our long patrol, until at last the squat red shape of a lightship appears through the haze, and we know that we have reached the limit of our outward journey. We sweep low over the isolated vessel, wave our hands to the men on board, and start to return home by a different route, and roar on over mile after mile of water glittering in the sun, which is slowly dissipating the mist of early morning.
Soon a group of ships are met steaming along towards us, and I recognise the vessels which I had seen anchored together waiting for the dawn. They are left behind us, and we regain the land from which we started. Over the sleeping seaport town we pass, and can see its red and brown roofs lit by the sun, and its empty streets. Then we sweep over the harbour, the pilot turns the machine round to face the wind, and the roar of the engine stops. We begin to glide down slowly, drawing nearer and nearer to the water. Just above the surface of the glittering waves we rush, touch it with a long splash, and slowly pull up and stop, floating once more in the harbour. The engines roar out again, and we "taxi" quickly over the little waves in long even jolts towards the slipway, where the men are waiting to help us ashore. When we are alongside they walk out to us in their waterproof thigh-boots and carry me on to the slipway.
I walk quickly through the hangars across the grass-covered lawn to the office, and sitting down at a typewriter begin to transcribe at once the notes I have written in my little blue book.
6.40. British cargo steamer, 5000 tons, steering S.W. Two patrol boats steering E.
6.45. Norwegian wood steamer Christiania, 3000 tons, steering W. in East Deep—
I write, and one after another I visualise the vessels as I record their positions for the benefit of the authorities.
As soon as the report is finished I give it to a messenger, who takes it down to the motor-boat which is waiting to carry it to a warship. Then I rush across the marsh on my motor-bicycle to the mess, and to a late but welcome breakfast.