Read it through once

The talk passed from the boomerang to dreams—usually a fruitful subject, afloat or ashore—but this time the output was poor. Then it passed to instances of extraordinary memory—with better results. Blind Tom, the negro pianist, was spoken of, and it was said that he could accurately play any piece of music, howsoever long and difficult, after hearing it once; and that six months later he could accurately play it again, without having touched it in the interval. One of the most striking of the stories told was furnished by a gentleman who had served on the staff of the Viceroy of India. He read the details from his note-book, and explained that he had written them down, right after the consummation of the incident which they described, because he thought that if he did not put them down in black and white he might presently come to think he had dreamed them or invented them.