FOOTNOTES:

[41] Read before the Heretics Club, Cambridge, May 1922.

[42] The reading of this paper brought a string of informants eager to let me know that Mr. Wells had already written a story on this theme. I was grateful to them for having caused me to read the New Accelerator, which by some strange chance I had managed to miss: but Mr. Wells’s treatment is so wholly different from that which I have sketched that I feel no scruples in letting it stand: and, if amends are needed, at least I make him a present of the germ of a new tale, and so feel that honour should be satisfied.