the handle not at all. The fact of its having been properly given to
the retina is made certain by the presence of the now disconnected
ends.

The second proof is that, similarly, if during an eye-movement two
stimulations of different colors are given to the retina, superposed
and at such intensity and rate of succession as would show to the
resting eye two successive phases of color (in the case taken,
reddish-orange and straw-yellow), it then happens that the first
phase, which runs its course and is supplanted by the second before
the movement is over, is not perceived at all. The first phase was
certainly given, because the conditions of the experiment require the
orange to be given if the straw-yellow is, since the straw-yellow
which is seen can be produced only by the addition of green to the
orange which is not seen.

These two phenomena seem inevitably to demonstrate a moment during
which a process on the retina, of sufficient duration and intensity
ordinarily to determine a corresponding conscious state, is
nevertheless prevented from doing so. One inclines to imagine a
retraction of dendrites, which breaks the connection between the
central end of the optic nerve and the occipital centers of vision.

The fact of anæsthesia demonstrated, other phenomena are now available
with further information. From the phenomena of the 'falsely
localized' images it follows that at least in voluntary eye-movements
of considerable arc (30° or more), the anæsthesia commences
appreciably later than the movement. The falsely localized streak is
not generated before the eye moves, but is yet seen before the
correctly localized streak, as is shown by the relative intensities of