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 dition. Our lesson in Communism has rendered all agitation on such matters, all tendency to democratic institutions, all appeals to popular passions, utterly odious and alarming to us. But that we are happy I will venture neither to affirm nor to deny. Physically, no doubt, we have great advantages over you, if I rightly understand your description of life on Earth. We have got rid of old age, and, to a great extent, of disease. Many of our scientists persist in the hope to get rid of death; but, since all that has been accomplished in this direction was accomplished some two thousand years back, and yet we continue to die, general opinion hardly concurs in this hope."

"How do you mean," I inquired, "that you have got rid of old age and of disease?"

"We have," he replied, "learned pretty fully the chemistry of life. We have found remedies for that hardening of the bones and weakening of the muscles which used to be the physical characteristics of declining years. Our hair no longer whitens; our teeth, if they decay, are now removed and naturally replaced by new ones; our eyes retain to the last the clearness of their sight. A famous physician of five thousand years back said in controversy on this subject, that 'the clock was not made to go for ever;' by which he meant that human bodies, like the materials of machines, wore out by lapse of time. In his day this was true, since it was impossible fully to repair the waste and physical wear and tear of the human frame. This is no longer so. The clock does not wear out, but it goes more and more slowly and irregularly, and stops at last for some reason that the most skilful inspection cannot discover.