SPINAL CORD REGENERATION. II 449 
LITERATURE CITED 
Coeuitt, G. E. 1900 The reaction to tactile stimuli and the development of 
the swimming movement in embryos of Diemyctylus torosus, Esch- 
sholtz. Jour. Comp. Neur., vol. 19, pp. 83-195. 
1913 The primary ventral roots and somatic motor column of Ambly- 
stoma. Jour. Comp. Neur., vol. 23, pp. 121-143. 
1914 Correlated anatomical and physiological studies of the growth 
of the nervous system of Amphibia. I: The afferent system of the 
trunk of Amblystoma. Jour. Comp. Neur., vol. 24, pp. 161-233. 
1916 II. The afferent system of the head of Amblystoma. Jour. 
Comp. Neur., vol. 26, pp. 247-340. 
Harrison, Ross G. 1893 The growth and regeneration of the tail of the frog 
larva. Arch. f. Entw.-mech., Bd. 7, 8. 430-485. 
1903 Experimentelle Untersuchungen iiber die Entwicklung der 
Sinnesorgane der Seitenlinie bei den Amphibien. Arch. f. mikr. Anat., 
Bd. 68, 8. 35-149. 
Herrick, C. J. anp Cocuttit, G. E. 1915 Development of reflex mechanisms 
in Amblystoma. Jour. Comp. Neur., vol. 25, pp. 65-85. 
Hooxer, Davenport 1911 The development and function of voluntary and 
cardiac muscle in embryos without nerves. Jour. Exp. Zodl., vol. 11, 
pp. 159-186. 
1915 Studies on regeneration in the spinal cord. I. An analysis of 
the processes leading to its reunion after it has been completely sev- 
ered in frog embryos at the stage of closed neural folds. Jour. Comp. 
Neur., vol. 25, pp. 469-495. 
1916 Some results from reversing a portion of the spinal cord end- 
for-end in frog embryos. Anat. Rec., vol. 10, pp. 198-199. 
Spemann, H. 1912 Uber die Entwicklung umgedrehter Hirnteile bei Am- 
phibienembryonen. Zool. Jahrb., Suppl. Bd. 15%, 8. 1-48. 
WINTREBERT, P. 1904 Sur |’éxistence d’une irritabilité excitomotrice primi- 
tive, indépendante des voies nerveuses chez les embryons ciliés de 
Batraciens. Comp. rend. Soe. Biol., t. 57, pp. 645-647. 
