above us, it became peopled. Why may the same process not happen again?"
"My dear Challenger, you can't mean that?"
"I am not in the habit, Professor Summerlee, of saying things which I do not mean. The observation is trivial." Out went the beard and down came the eyelids.
"Well, you lived an obstinate dogmatist, and you mean to die one," said Summerlee, sourly.
"And you, sir, have lived an unimaginative obstructionist, and never can hope now to emerge from it."
"Your worst critics will never accuse you of lacking imagination," Summerlee retorted.
"Upon my word!" said Lord John. "It would be like you if you used up our last gasp of oxygen in abusing each other. What can it matter whether folk come back or not? It surely won't be in our time."
In that remark, sir, you betray your
