164 S. R. DETWILER 
Harrison, R. G. 1907 Experiments in transplanting limbs and their bearing 
upon the problem of the development of nerves. Jour. Exp. Zodl., 
vol. 4. 
1910 The outgrowth of the nerve fiber as a mode of protoplasmic 
movement. Jour. Exp. Zoél., vol. 9. 
1915 Experiments on the development of limbs in Amphibia. Proe. 
Nat. Acad. Sei., vol. 1. 
1917 Transplantation of limbs. Ibid., vol. 3. 
1918 Experiments on the development of the fore limb of Ambly- 
stoma, a self-differentiating equipotential system. Jour. Exp. Zodl., 
vol. 25. 
Herrick, C. J. 1914 The medulla oblongata of larval Amblystoma. Jour. 
Comp. Neur., vol. 3. 
NaussspaumM, M. 1894 Nerv und Muskel: Abhingigkeit des Muskelwachstums 
vom Nervenverlauf. Verhandlungen der Anatomischen Gesellschaft. 
8 Versammlung in Strassburg. 
Roux, W. 1893 Einleitung. Archiv fiir Entwicklungsmechanik der Organis- 
men. Bd. 1. 
SHorey, M. L. 1909 Effects of destruction of peripheral areas on the differ- 
entiation of neuroblasts. Jour. Exp. Zodl., vol. 7. 
WerersHEIm 1889 Das Gliedmassenskelett der Wirbelthiere mit besonderer 
Beriicksichtigung des Schulter- und Beckengiirtels bei Fischen, Am- 
pibien und Reptilien. Jena, 1892. 
