"You just told me, don't y' know."
"I told you!"
"Not in so many words," Vance pointed out. "But after I had shown you the approximate height of the murderer, and it didn't correspond at all to that of the young lady you suspected, I knew your active mind was busy looking around for another possibility. And, as the lady's inamorato was the only other possibility on your horizon, I concluded that you were permitting your thoughts to play about the Captain. Had he, therefore, been the stipulated height, you would have said nothing; but when you argued that the murderer might have stooped to fire the shot, I decided that the Captain was inord'nately tall. . . . Thus, in the pregnant silence that emanated from you, old dear, your spirit held sweet communion with mine, and told me that the gentleman was a six-footer no less."
"I see that you include mind-reading among your gifts," said Markham. "I now await an exhibition of slate-writing."
His tone was irritable, but his irritation was that of a man reluctant to admit the alteration of his beliefs. He felt himself yielding to Vance's guiding rein, but he still held stubbornly to the course of his own previous convictions.
"Surely you don't question my demonstration of the guilty person's height?" asked Vance mellifluously.
"Not altogether," Markham replied. "It seems colorable enough. . . . But why, I wonder, didn't Hagedorn work the thing out, if it was so simple?"
"Anaxagoras said that those who have occasion
