Harvard Psychological Studies, Volume 1
 Dodge, Raymond, PSYCHOLOGICAL REVIEW, 1900, VII., p. 456.
 Graefe, A., Archiv f. Ophthalmologie, 1895, XLI., 3, S. 136.
This explanation of Graefe is not to be admitted, however, since in the case of eye-movement there are muscular sensations of one's own activity, which are not present when one merely sits in a coach. These sensations of eye-movement are in all cases so intimately connected with our perception of the movement of objects, that they may not be in this case simply neglected. The case of the eye trying