VIII.
MORPHOGENESIS
OF THE VERTEBRATE
EYE
339
(Alexander, 1937; Dorris, 1938; Neyfakh, 1951). This proved the equipotentiality of all parts of the primary eye rudiment and the capacity of
its layers to undergo mutual transformation. This conclusion is confirmed when one eye is obtained experimentally by the fusion of two eye
FIG. 3. Stages of optic vesicle transformation into eye cup in Amphibians,
a-e—Triturus taeniatus (from Sato, 1933).
f—Hyla regula (from Eakin, 1947).
Arrows show the stages at which axes of retinal polarity are established: a—anteroposterior; c—dor so-vent ral; f—medio-lateral.
vesicles in Amphibia (Detwiler, 1929; Pasquini, 1932), and when two
adjacent normal eyes are obtained in a chick by separating the eye
rudiment at the 20-28 somite stage into two halves, both along the
plane coinciding with the choroid fissure, and along the plane
perpendicular to this (Reinbold, 1958).
Μ
A.M. I
MORPHOGENESIS
OF THE VERTEBRATE
EYE
339
(Alexander, 1937; Dorris, 1938; Neyfakh, 1951). This proved the equipotentiality of all parts of the primary eye rudiment and the capacity of
its layers to undergo mutual transformation. This conclusion is confirmed when one eye is obtained experimentally by the fusion of two eye
FIG. 3. Stages of optic vesicle transformation into eye cup in Amphibians,
a-e—Triturus taeniatus (from Sato, 1933).
f—Hyla regula (from Eakin, 1947).
Arrows show the stages at which axes of retinal polarity are established: a—anteroposterior; c—dor so-vent ral; f—medio-lateral.
vesicles in Amphibia (Detwiler, 1929; Pasquini, 1932), and when two
adjacent normal eyes are obtained in a chick by separating the eye
rudiment at the 20-28 somite stage into two halves, both along the
plane coinciding with the choroid fissure, and along the plane
perpendicular to this (Reinbold, 1958).
Μ
A.M. I