308 'Journal of Comparative Neurology and Psychology. 



Johnston, J. B. 



'05. The Morphology of the Vertebrate Head from the Viewpoint of the Functional Divisions 

 of the Nervous System. Jour. Comp. Neurol, and Psychol., vol. 15, no. 3, pp. 176- 



Keibel, F. 



Zur Entwicklungsgeschichte der Chorda bei Saugern. Arch. f. Anat. u. Physiol., pp. 329-338. 



KoRANYI, A. V. 



'93. Ueber die Reizbarkeit der Froschhaut gegen Licht und Warme. Centralb. f. Physiol., 

 Bd. 6. pp. 6-8. 

 Lankester, E. R. 



'80. Degeneration. London. 

 LocY, Wm. a. 



'93. The Derivation of the Pineal Eye. Anat. Anzeiger, Bd. 9, pp. 169-180. 

 Parker, G. H. 



'03. The Skin and Eyes as Receptive Organs in the Reaction of Frogs to Light. Amer. 



Jour. Physiol., vol. 10, pp. 28-36. 

 '05. The Stimulation of the Integumentary Nerves of Fishes by Light. Amer. Jour. Physiol. 

 vol. 14, pp. 413-419. 

 Plateau, F. I. 



'89. Recherches experimental sur la vision chez les arthropodes. Memoires couromes de 

 P Academe royale des sciences, des lettres et des beaux arts, de Belgique. Tom. 43, pp. 

 1-91. 



ToRCLLE, E. 



'03. The Response of the Frog to Light. Amer. Jour. Physiol., vol. 9, pp. 466-488. 

 Whitman, C. O. 



'88. Some New Facts about the Hirudinea. Jour. Morph., vol. 2, pp. 585-599. 

 '98. .'\nimal Behavior. Biological Lectures. Ginn & Co., Boston, Mass. 



