This "drew" Hamilton, as she intended; and he launched into an elaborate defence of scientists in general. Very much to his surprise, he found her remark to be no random shaft. He had discovered before now a cheerful uncertainty about Doris's mental attributes, which kept him continually on the stretch. You never could foretell what she would produce next from her hidden laboratory. Any amount of feminine inconsequence might come to the fore; but, when least expected, she would send an arrow straight to the mark. "Oh, yes, of course. Nobody makes mistakes on purpose. But there was a bone somewhere, which all the savants declared was a human bone. And they proved a heap of things from it, about how long man had been living on earth. And in the end it turned out to be only a bear's bone; so all the wonderful arguments went to smash. Father told me; and I think he was rather pleased. Only, he was afraid a great many people who heard of its being a man's bone, never were told that it was all a mistake. And he said we should never be in a hurry to draw conclusions of that sort, because Science is a structure built upon discarded blunders." She quoted the words with empressement. Hamilton had intended to give, not to receive, information. He would not for the world confess that he had forgotten the incident in question; for a man whose cue it is to know everything naturally does not like to be caught napping. He was conscious of relief when she went back to his article. "Would you care to read it in proof?" he asked. "May I, really?" Her face flashed into brilliant interest. "I've never read proof-sheets. May I help you to correct the mistakes?" His smile showed doubt of her powers. "I have it here," he remarked, and she was on the ground with a spring. Impetus carried him ahead; but he wheeled, came back, and dismounted. "You should not jump off in that wild way. It is unsafe." "Oh, I often do, going full speed. I always come down right way up. Do show me the proof. It's light enough." Her eagerness gratified him. They stood at one side of the road, and red sunset gleams, shining through a thin veil of trees, found a reflection in her sunny face. He fished a small packet out of its retreat, and she scanned the long slip with delight, spotting instantly two slight printer's errors which had escaped his notice. He pencilled both; and then she pitched on another mistake, this time grammatical, not the printer's but Hamilton's own. He was chagrined, finding it impossible to deny the force of her contention; and—"I will consider it"—was all he could bring himself to say. He had expected praise, not criticism. A motor car rushed by, covering them both with dust. Doris was too much absorbed to notice it.