of succession_, noticeable between the two phases when the eye is at
rest, has _disappeared with the sensation of redness_.

The cases in which 5 is seen are, however, indisputably significant.
The image is apparently of just the height and width of _i_, and there
is not the slightest trace of the reddish-orange phase. The image
flashes out over the final fixation-point, green and straw-yellow,
just as the end-circles of the dumb-bell appeared without their
handle. The rate of succession of the stimuli, green--red--green, on
the retina, is identical with that rate which showed the two phases to
the resting eye: for the pendulum is here moving at the very same
rate, and the eye is moving exactly with the pendulum, as is shown by
the absence of any horizontal elongation of the image seen. The
trained subject seldom sees any other images than 4 and 5, and these
with about equal frequency, although either is often seen in ten or
fifteen consecutive trials. As in the cases of the falsely localized
images and of the handleless dumb-bell, movements of both eyes, as
well as of the head but not the eyes, yield the same phenomena. It is
interesting again to compare the appearance under reflex movement. If
at any time during the experiments the eye is allowed to follow the
pendulum reflexly, the image is at once and invariably seen to pass
through its two phases as it swings past the nine-centimeter opening.

The frequent and unmistakable appearance of this band of straw-yellow
on a non-elongated green field _without the previous phase in which
the band is reddish-orange_, although this latter was unmistakable
when the same stimulation was given to the eye at rest, is
authenticated by eight subjects. _This appearance, together with that
of the handleless dumb-bell, is submitted as a demonstration that
during voluntary movements of the eyes, and probably of the head as