142
R . J .
G O S S
The results of the foregoing experiments do not always agree. Taken
together, however, the majority of them tend to indicate that what is
regenerated does not necessarily conform to what is being replaced,
especially when the latter represents a departure from normal ontogeny.
FIG. 6. The results of successive amputations of larval Rana temporaria tails rendered
abnormal b y excision of the dorsal half of the embryonic tail-bud. W i t h few exceptions,
the morphology of the regenerate concurs with the structure of the s t u m p at the level of
amputation. N u m b e r of animals surviving each experiment is indicated. (From N e w t h ,
1958a, b y courtesy of author and publisher).
R . J .
G O S S
The results of the foregoing experiments do not always agree. Taken
together, however, the majority of them tend to indicate that what is
regenerated does not necessarily conform to what is being replaced,
especially when the latter represents a departure from normal ontogeny.
FIG. 6. The results of successive amputations of larval Rana temporaria tails rendered
abnormal b y excision of the dorsal half of the embryonic tail-bud. W i t h few exceptions,
the morphology of the regenerate concurs with the structure of the s t u m p at the level of
amputation. N u m b e r of animals surviving each experiment is indicated. (From N e w t h ,
1958a, b y courtesy of author and publisher).