II. The retention of vision in dreams as dependent
upon the age of the loss of sight; the "critical
period;" the investigation of Heermann in 1838;
the status as to "dream-vision" of the partially
blind 340
III. Corroborations of the above results by other
evidence; the dreams of the blind-deaf; dreams of
Laura Bridgman; Helen Keller's account of her
dream-life; interpretations 345
IV. Distinctions in dream-life of incidents experienced
during the period of sight from those of the
blindness period; the imagination of the blind;
illustrations of their dreams 360