"On the 19th the different colored pieces of card were separately placed before his eye, and so little had he gained in thirteen days that he could not, without counting their corners one by one, tell their shape. This he did with great facility, running his eye quickly along the outline, so that it was evident he was still learning, just as a child learns to read. He had got so far as to know the angles, when they were placed before him, and to count the number belonging to any one object. The reason of his making so slow a progress was, that these figures had never been subjected to examination by touch, and were unlike anything he had been accustomed to see. He had got so much the habit of assisting his eyes with his hands, that nothing but holding them could keep them from the object. "On the 26th the experiments were again repeated on the couched eye. It was now found that the boy, on looking at any one of the cards in a good light, could tell the form nearly as readily as the color." From these two instructive cases Home concludes: "That, where the eye, before the cataract is removed, has only been capable of discerning light, without being able to distinguish colors, objects after its removal will seem to touch the eye, and there will be no knowledge of their outline, which confirms the observations made by Chesselden. "That where the eye has previously distinguished colors, there must also be an imperfect knowledge of distances, but not of outline, which, however, will be very soon acquired, as happened in Ware's cases. This is proved by the history of the first boy, who, before the operation had no knowledge of colors or distances, but after it, when his eye had only arrived at the same state that the second boy's was in before the operation, he had learned that the objects were at a distance and of different colors. "That when a child has acquired a new sense, nothing but great pain or absolute coercion will prevent him from making use of it." VI. THE WARDROP CASE. James Wardrop reports ("Philosophical Transactions of the Royal Society for 1826," iii, 529-540, London, 1826):