It is a surprising thing, in the account of the former case, that nothing whatever is said of the behavior of the patient on the first and on the fourth day after the operation. We must assume that he passed the first day wholly with his eyes bandaged. Further, the boy pointed out four corners of a box, while the box had eight; yet no inference can be drawn from this, for possibly only one side of the box was shown to him. The most remarkable thing is the statement of the patient that he saw the _shadow_ of his hand in the glass. This circumstance, and the astonishing certainty, at the very first attempts to estimate space-relations, in the discrimination of round and angular, and in the observation that the table was somewhat farther from him than he could reach, show what influence the mere ability to perceive colors has upon vision in space. Before the operation, W. distinguished only striking colors from one another; but he could perceive nearness and distance of colored objects, within narrow limits, by the great differences in the luminous intensity of the colors. He distinguished with certainty dimness from brightness. Accordingly, when he noticed a decrease in the brightness of a color, he inferred the distance of the colored object from the eye, regulating his judgment also by touch. Thus the boy had, before the operation, some perception of space with the eye, and it is not much to be wondered at, considering his uncommon intelligence, that he, soon after the operation (probably attempts at seeing were secretly made by the patient on the first day) learned to judge pretty surely of space-relations--much more surely than a person born blind learns to judge in so short a time. Besides, it is not to be forgotten that, while it is true that the cataract had become completely developed at the end of the first year of life, there is no proof that the child was unable to see during the first months. At that time images, as in the second case, may have unconsciously impressed themselves, with which, at a later period, more accurate space-ideas may have been associated, through the sense of touch, than is the case with persons born completely blind. Ware concludes, from his observations-- 1. "When children are born blind, in consequence of having cataracts in their eyes, they are never so totally deprived of sight as not to be able to distinguish colors; and, though they can not see the figure of an object, nor even its color, unless it be placed within a very short distance, they nevertheless can tell whether, when within this distance, it be brought nearer to or carried farther from them.