Number 4, July, 1907. 



The Tactile Centers in the Spinal Cord and Brain of the Sea Robin, Prionotus carolinus. By C. 



JuDSON Herrick. (Studies from the Neurological Laboratory of Denison University, No. 



XXI. ") With fifteen figures 307 



An Experimental Study of an Unusual Type of Reaction in a Dog. By G. van T. Hamilton. 



(From the McLean Hospital, Waverley, Mass.) With two figures 329 



The Normal Activity of the White Rat at Different Ages. By James Rollin Slonaker. {From 



the Physiological Laboratory of Stanford University.) With eight figures 342 



Editorial, Concihum Bibliographicum 360 



Literary Notices 364 



Number 5, September, 1907. 



The Homing of Ants: An Experimental Study of Ant Behavior. By C. H. Turner. (From the 

 Zoological Laboratory of the University of Chicago.) With Plates II-IV and one figure in 

 the text 367 



The Behavior of the Phantom Larvae of Corethra plumicornis Fabricius. By E. H. Harper. 



(From the Zoological Labortary of Northwestern University.) With five figures 435 



Literary Notices 4^7 



Number 6, November, 1907. 



The Nerves and Nerve Endings in the Membrana Tympani. By J. Gordon Wilson. (From 



the Hull Laboratory of Anatomy of the University of Chicago.) With Plate V 459 



A Study of the Diameters of the Cells and Nuclei in the Second Cervical Spinal Ganglion of the 

 Adult Albino Rat. BySHiNKiSHi Hatai. (From the Wistar Institute of Anatomy and 

 Biology.) With four figures 469 



Anomalies of the Encephalic Arteries among the Insane. A Study of the Arteries at the Base of 

 the Encephalon in Two Hundred and Twenty Consecutive Cases of Mental Disease, with 

 Special Reference to Anomalies of the Circle of Willis. By I. W. Blackburn. (From the 

 Government Hospital for the Insane, Washington, D. C.) With eleven figures 493 



Editorial 519 



Professor Golgi on the Doctrine of the Neurone. 

 Neurological Terminology. 



The International Zoological Congress 524 



Literary Notices 527 



