SYMMETRY IN TRANSPLANTED LIMBS 123 
February 25. Well healed. Very small uncovered area \'entral to 
bud. 
February 28. Transplanted bud larger than normal and a little 
further venti'al. 
March 3. Bud is growing ventroposteriorly. 
March 7. Bud long and slender, growing posteriorly almost on 
ventral sui-face of body; probably defective. 
March 11. Same. 
March 15. Original limb has not changed essentially. A second 
outgrowth of considerable length arises some distance dorsal to former 
and projects laterally. . Judging by its size, it must have been present 
and overlooked at last observation. 
]\Iarch' 20. Original limb a long bent appendage tapering gradually 
to a point. New bud has made considerable growth and is loidigitate, 
the digits spreading more than normally. Indication of elbow bend. 
March 28. Secondary appendage has developed a third digit, which, 
with elbow bend, shows that it is probably a left (reversed). 
April 4. Specimen pres' rved (figs. 33 and 34). Transverse sections 
show that limb is undoubtedly a left, since it is the dorsoposterior 
surface of the hand that is the pahii — a very unusual posture. The 
two limbs have separate girdles which articulate with one another, but 
are not fused. 
Experiment Tr. E. 217. May 17, 1916. Right liml) bud to left 
flank, dorsoventral. 
May 18. Perfectly healed. 
May 21. Graftecl bud almost exactly like normal, points dorso- 
posteriorly. 
May 29. Limb short, sticks out more sharply to side. Digitations 
will probably be abnormal. 
May 31. Possibly sjanmetrical reduphcation of digits (fig. 31). 
June 5. Uncertainty about reduplication. One distinct digit 
(third) on posterior (ulnar) border and also a slight nodule (fourth 
digit). Prominence on opposite border may not be digits (fig. 32). 
June 8. One distinct digit and trace of another formed out of hump 
on radial side so that hand is now practically sj'mmetrical. 
Limb amputated; afterward regenerated; form much like original. 
B. Orthotopic traiisplcmtations 
7. Homopleural, dorsodorsal 
Experiment N. E. 3. May 19, 1918. Right limb bud to right side 
- — normal orientation. Pronephros intact. 
May 21. Perfectly healed; limb bud normal. 
May 25. Both limbs same except that transplanted one is slightly 
shorter. 
May 28. No difference between the two limbs. 
June 7. Same. Specimen preserved. 
