TRANSPLANTATION OF LIMBS IN AMBLYSTOMA a7 
after the operation, those in the heterotopic limbs appearing 
about two days later. This would indicate that the period of 
delay in this series has no correlation with the length of time 
required for the nerves to grow back to the heterotopic limb. 
As was the case in series AS1, the delay probably represents the 
time required for reorganization of the rudiment subsequent to 
its reimplantation. 
Series ASS. Reimplanting the limb rudiment the distance 
of three segments posterior to the original position results in 
TABLE 4 
Showing the development of the different components of the shoulder-girdle when 
implanted successively a number of segments (1 to 6) posterior to 
the normal position 
THE SHOULDER-GIRDLE 
CASES 
Suprascapula Scapula Procoracoid Coracoid 
INStliped canes o6|| (Niosceyt Thick Abbreviated Short 
ISZio nee ees Short Normal | Very short Normal 
INSB Yo dod ou o]||eSLieral Normal | Short Short 
ASS gerne nice ote Very short Normal | Very small Normal 
NSA SG is tsi atane - Short and thick | Normal | Small Normal 
Store ences es: Short and thick | Normal | Small Very short 
ISH eee Short Normal | Well developed Short 
JASE Gg Seer Short Normal | Short and thick | Normal 
/ ASU cee 6 See Short Normal | Absent Normal 
PESO Gea hao ase Short Normal | Very small Short 
INSOne sates fs Short and thick | Normal | Very small Well developed 
a decreased number of cases with normal limbs, there being only 
thirteen such cases in seventeen positive experiments (table 1). 
A study of the functional behavior of limbs so transplanted shows 
also a decreased percentage of cases in which codrdinated move- 
ments of the limbs could be perfectly carried out. Although 
88 per cent of the limbs were capable of movements, only 64 
per cent functioned perfectly, 23 per cent exhibiting impaired 
function, and 11 per cent being entirely incapable of movements 
(table 1 and fig. 7). : 
