The Psychological Study of Blind Children

were entirely due to the accident of sightlessness. For instance, there sat Rollo, slouched in his seat, his mouth half-opened, one hand flapping persistently back and forth before his one quite hopeless eye; Rollo, who never answered by much more than a grunt unless it were to explode into violent recriminations; seventh-grade Rollo, who could read a Braille sentence seventeen times and still not frame the sense of it. The day before, in seventh-grade arithmetic, when I had asked pretty, curly-haired Jane the value of one-half in per cent, Jane had, after much frowning concentration, suggested five per cent, at which the class and I had gone over the old drill: '' one-half? fifty per cent; one-fourth?twenty-five per cent; etc.," and Jane and I had discussed whether we would not have just as much apple to eat if we had fifty per cent of one as we would if we had a half of one, and Jane had entered into the discussion vivaciously and had smiled engagingly at me, and then had answered two minutes later, when I propounded the original question, "Forty-two per cent!" A number we had never mentioned! And again there was Marjorie, who, in the sixth grade, spelled