What sort of sensation, however, is suited to play the individuating role attributed to a local sign? Lotze appeals to kinaesthetic sensations that accompany gaze-directing movements of the eyes (1887 [1879]: §§284–86). If P is the location on the retina stimulated by a distal point d and F is the fovea, then PF is the arc that must be traversed in order to align the direction of gaze with d. As the eye moves through arc PF, its changing position gives rise to a corresponding series of kinaesthetic sensations p0, p1, p2, …pn, and it is this consciously experienced series, unique to P, that constitutes P’s local sign. By contrast, if Q were rather the location on the retina stimulated by d, then the eye’s foveating movement through arc QF would elicit a different series of kinaesthetic sensations k0, k1, k2, …kn unique to Q.