The Journal of 

 Comparative Neurology and Psychology 



Contents of Volume XVI, 1 906 



Number I, January, 1906. 



The Structure of the Teleostean and Selachian Brain. By Dr. C. U. Ari'ens Kappers, 



Amsterdam. With sixteen plates i 



Literary Notices no 



Number 2, March, 1906. 



The Establishment of an Association Involving Color-Discrimination in the Creek Chub, 



Semotilus atromaculatus. ByMARGARExF. Washburn andl. Madison Bentley 113 



The Habits of Certain Tortoises. By H. H. Newman. {From the Zoological Laboratory of the 



University of Michigan.) 12.6 



The Increase in Number and Size of the Medullated Fibers in the Oculomotor Nerve of the White 

 Rat and of the Cat at Different Ages. By Thomas Harris Boughton. {From the 

 Neurological Laboratory of the University of Chicago.) With three figures 153 



Correspondence. Hearing in Frogs. By Dr. Edinger and Dr. Yerkes 166 



Literary Notices 1 69 



Number 3, May, 1906. 



The Mixed Cerebral Nerves in Mammals. By Frederick T. Lewis, Harvard Medical School. 



With Plate XVII 177 



Preliminary Report on the Cytology of Molluscan Nerve Cells. By W. M. Smallwood. 



{From the Zoological Laboratory of Syracuse University.) With seven figures 183 



On the Correlation between Intelligence and the Size of the Head. By Raymond Pearl, 



University of Michigan 189 



Death-Feigning in Ranatra. By S. J. Holmes. {From the Zoological Laboratory of the 



University of Michigan) 200 



Observations on the Color-Sense of a Child. By Wilibald A. Nagel, Professor of Physiology 



in the University of Berlin 217 



Georges Bohn's Studies in Animal Behavior. By Robert M. Yerkes 231 



Literary Notices 236 



iii 



