CONTENTS XV 



Physiological Mechanism of Producing Excitatory Transmitter in the 

 Brain of Dogs 

 by Takashi Hayashi 385 



Complete Cure of Natural Epilepsy of Dogs by /S-Hydroxy-y-amino- 

 butyric Acid Introduced into their Ventricles 

 by Takashi Hayashi and Kazuo Nagai 389 



The Organization of the Primitive Central Nervous System as Suggested 

 by Examples of Inhibition and the Structure of Neuropile 

 by G. Adrian Horridge 395 



Inhibition and Occlusion in Cortical Neurons 



by A. L. TowE 410 



The Influence of the Cerebral Cortex on the Dorsal Column Nuclei 



by S. J. Jabbur and A. L. Towe 419 



Ontogenetic Analysis of Some Evoked Synaptic Activities in Superficial 

 Neocortical Neuropil 

 by DoMiNicK P. Purpura ....... 424 



Inhibition in the Neuro-endocrine Systems of Invertebrates 



by William G. Van der Kloot ...... 447 



Conclusion 



by Ernst Florey ......... 459 



Author Index .......... 461 



Subject Index .......... 467 



