Number 4, July, 1906. 



The Cranial Nerves of Triton taeniatus. By G. E. Coghill. {Contributions from the 



Laboratory of Pacific University) 247 



Retrograde Degeneration in the Spinal Nerves. By S. Walter Ranson. {From the Neurological 

 Laboratory of the University of Chicago and the Anatomical Laboratory of St. Louis 



University) 265 



The Primitive Pores of Polyodon spathula. By Herbert D. Kistler. {From the Anatomical 



Laboratory of St. Louis University.) With Plate XVIII 294 



The Reactions of Crayfish to Chemical Stimuli. By James Carleton Bell 299 



Editorial. Abnormal Psychology 327 



Literary Notices 923 



Number 5, September, 1906. 



The Imitative Tendency of White Rats. By Charles Scott Berry. {From the Harvard 



Psychological Laboratory.) 333 



Applications of Dynamic Theory to Physiological Problems. By the Late C. L.Herrick 362 



Imitation and Volition. By the Late C. L. Herrick 376 



Editorial. Objective Nomenclature, Comparative Psychology and Animal Behavior 380 



Literary Notices 391 



Number 6, November, 1906. 



The Mode of Connection of the Medullated Nerve Fiber with its Cell Body. By Oliver S. 



Strong, Columbia University. With Plate XIX 397 



On the Centers for Taste and Touch in the Medulla Oblongata of Fishes. By C. Judson Herrick. 



{Studies from the Neurological Laboratory of Denison University, No. XIX.) With ■ 



fifteen figures 403 



Modifiability of Behavior in Hydroides dianthus V. By Ada Watterson Yerkes. With one 



figure 441 



Notes on the Behavior of Gonionemus. By Mac Morse, College of the City of New Tork 450 



Concerning the Behavior of Gonionemus. By Robert M. Yerkes 457 



Editorial. Human and Comparative Neurology 464 



Literary Notices , 467 



