seen, _separated by a dark space between_; firstly the anomalous one"
(the false streak) "rather brilliant, and secondly a fainter one of
about equal or perhaps greater length, which began at the new
fixation-point _b_ and was manifestly an after-image correctly
localized with regard to the situation of this point. This last
after-image streak did not always appear; but it appeared regularly if
the light at _a_ was bright enough and the background dark.... It was
impossible for this second after-image streak to originate in the
point _b_, because it appeared equally when _b_ was only an imaginary
fixation-point.... This consideration makes it already conceivable
that the two parts of the total after-image _are two manifestations of
the one identical retinal stimulation, which are differently
localized_.... Therefore we must probably picture to ourselves that
the sensation from the strip of the retina stimulated during the quick
eye-movement is, _during the interval of movement or at least during
the greater part of it, localized as if the axis of vision were still
directed toward the original fixation-point. And when the new position
of rest is reached and the disturbance on the retinal strip has not
wholly died away, then the strip comes once more into consciousness,
but this time correctly localized with reference to the new position
of the axis of vision_. By attending closely to the behavior as
regards time of both after-image streaks, I can generally see the
normal after-image develop a moment later than the anomalous one"
(that is, the false streak). Schwarz finally suggests (S. 404) that
probably between the first and second appearances of the streak an
'innervation-feeling' intervenes which affords the basis for
localizing the second streak ('correctly') with reference to the new
position of the eye.

After this digression we return to consider how this phenomenon is