SYMMETRY IN TRANSPLANTED LIMBS 135 
April 9. Operated limb a little more massive than normal. 
April 11. Limb more massive, rounded, not more distinctly marked 
off posteriori}' than anteriorly when viewed from above. Points 
dorsally slightly posteriorly in lateral view. 
April 14. More massive, but otherwise normal. 
April 22. Not quite so long; syndactjdy first two digits, otherwise 
normal. 
May 4. Normal except for syndactyly. 
Experiment H. R. E. 9. April 11, 1917. Posterior half left hmb bud 
in place of anterior right (fig. 120, 10). Wound perfectly healed same 
evening. 
April 14. Operated limb bud looks nearly normal. No definite 
pointing. 
April 16. Two rather distinct nodules, the posterior one consider- 
ably more prominent. 
April 18. Posterior l^ud smaller than normal, points dorsolaterally. 
Anterior one not so definite. 
April 23. Two entirely separate limbs; anterior one is shorter, 
points ventroposteriorly; posterior one points straight to side; no 
digitations. 
April 28. Two limbs point posterolaterally, parallel to one another; 
anterior one thicker, has two digits and beginning of third; apparently 
a normal, though much smaller, right limb in approximate!}' normal 
position. Posterior limb thinner, rod-like, with no digits. 
May 4. Anterior limb a normal right; posterior, verj- imperfect, 
has one long digit and third digit nodule on upper border; elbow bend 
shows; limb probably also a right (?) 
May 12. Anterior limb has good function. 
May 21. Specimen preserved. The anterior member is a normal 
right, somewhat smaller than the unoperated liml). Posterior member 
has one long and one short digit, and has same general position as the 
anterior. Total view leaves in uncertainty which is palmar surface 
(fig. 131). Sections show clearl}^ that the ventrolateral surface is the 
palm and that the limb is therefore a left. 
Experiment H. R. E. 20. May 2, 1917. Dorsal half left limb bud 
in place of dorsal right (fig. 120, 11). 
May 3. Wound perfectly healed. 
May 7. Operated limb about full size, points anteriorl}^ and slightly 
dorsally. 
May 10. Projects straight to side. Slight indication of posterior 
reduplicating bud from near attachment of limb. 
May 14. Main limb points dorsolaterally and slightly jjosteriorly. 
The redupHcating l)ud is attached near base and in part directly to 
body wall; it has grown considerabl}^ but is still without digits. 
May 18. Main (anterior) member sticks out to side, but now points 
distinctly posteriorly as well, is slender and with two digits. Other 
hmb shorter, but considera})ly stouter, with faint indication of two 
digits. 
