To a certain extent, their foresight had been justified. With the coming of the air-ways, the war-spirit was temporarily exorcised. The vast increase in the size and number of air-craft and the terrors of an aerial war, with all its untested possibilities, served to rein in even the most ardent of military nations. Standing armies still persisted; but their numbers had been diminished to a few thousands; for under the new conditions the old huge and unwieldy terrestrial forces could neither be fed, nor protected from aerial attacks. Thus as I leaned on the rail of the suspension bridge and looked out over the greenery of the Park it seemed to me a very pleasant world. Those of the younger generation can hardly imagine how fair it was or how inexhaustible it seemed. Thousands of square miles of Africa and South America were still virgin soil, store-houses of untapped resources waiting for humanity to draw upon their abundance. There was food for all the thousand millions of mankind; and, as the population rose, fresh lands could be brought under cultivation for the mere labour of clearing the soil of its surplus vegetation. It was the Golden Age of humanity; yet few of us recognised it. We looked either backward into the past or forward into the future when we sought the Islands of the Blest: while all about us lay Paradise, and the Earth blossomed like a huge garden which was ours for the taking. I left my visions with a sigh and continued my way across the Park. The prolonged spell of heat was affecting the vegetation. The trees were dusty; and the grass seemed to have lost something of its brilliant green. I remember that after I had crossed the Broad Walk I noticed especially how moribund all the plant-life of the Park appeared to be. There was an air of decline about it, though no tints of autumn had yet appeared in the leaves. Wotherspoon was, as usual, in his laboratory. The glass of the windows had been replaced; but otherwise the place was much in its disordered condition. I suspect that he had purposely refrained from getting it cleared up, in order to impress reporters with the actual damage which the explosion had done; and that when the reporters had ceased to call he had left things as they were with the idea of fascinating any visitors who might come. He was sitting at his writing-desk, surrounded by piles of books from which he was apparently extracting information for the purpose of some fresh article he had in hand; and when I came in he asked me to excuse him for a few minutes until he had got his data completed. In order to amuse me in the meanwhile, he dragged out his microscope and a pile of slides which he thought might interest me.