Existence of carefully-prepared concrete emplacements, in readiness for the huge German Krupp guns, has been reported to me from a dozen different quarters--sometimes they are concealed in the form of a concrete carriage-drive, in others as a tennis-court, or a yard enclosed by stables. Workmen who have actually been employed in laying them down, and have given me the enormous thicknesses of the concrete used, have communicated with me, and indicated where these long-considered preparations of the enemy are to-day to be found. But as it is nobody's business, and as Mr. McKenna has assured us that we are quite safe, and that the spy-peril has been snuffed-out, the position is here again hopeless, and we are compelled to live daily upon the edge of a volcano. Oh! when will England rub her eyes and awaken? As events have proved in Belgium and France, so here, in our own dear country, I fear we have spies in every department of the public service. I say boldly, without fear of contradiction--that if our apathetic Home Department continues to close its eyes as it is now doing, we shall be very rudely stirred up one day when the Zeppelins come in force--as the authorities fear by the darkening of London. From the lessons taught us in France, I fear that in every department of our public services, the post-office, the railways, the docks, the electric generating-stations, in our arsenals, in our government factories, and among those executing certain government contracts--everywhere, from Wick to Walmer--the spy still exists, and he is merely awaiting the signal of his masters to strike: to blow up bridges and tunnels, to destroy water-supplies, docks, power-stations and wireless-stations: to cut telegraphs and telephones, and to create panic--a sudden and fearful panic--which it would be to the interest of the invaders to create. At my suggestion the Postmaster-General, at the outbreak of war, ordered each letter-carrier in the Kingdom to prepare lists of foreigners on their "walk," and upon those lists hundreds of arrests of aliens took place. No doubt many spies were "rounded-up" by this process, but alas! many still remain, sufficient of the "naturalised,"--even those "naturalised" after the war,--to form a very efficient advance-guard to our invading enemy, who hate us with such a deadly, undying hatred. If Zeppelins are to raid us successfully they must have secret bases for the supply of petrol for their return journey. Such bases can only be established in out-of-the-way places where, on descending, air-craft would not be fired upon. The moors, those of Yorkshire, Dartmoor, and certain districts of Scotland and the Lake Country, are admirably adapted for this purpose, for there are spots which could easily be recognised from the air--by the direction of the roads, running like ribbons across the heather--where considerable stores could easily be secreted without anyone being the wiser.