

CONTENTS 



Page 



Inhibitory Neurons: a Survey of the History of their Discovery and 

 of their Occurrence 



by C. A. G. WiERSMA 1 



Varieties of Inhibitory Processes 



by Harry Grundfest ........ 8 



A Study of Some Twentieth Century Thoughts on Inhibition in the 

 Spinal Cord 

 by David P. C. Lloyd 13 



Anatomical Aspects of Inhibitory Pathways and Synapses 



by J. SZENTAGOTHAI 32 



Inhibitory Pathways to Motoneurons 



by J. C. EccLES ......... 47 



Regulation of Discharge Rate by Inhibition, Especially by Recurrent 

 Inhibition 

 by Ragnar Granit ........ 61 



The Synaptic Mechanism for Postsynaptic Inhibition 



by J. C. EccLES 71 



The Change in Membrane Permeability during the Inhibitory Process 



by Paul Fatt 87 



Neuromuscular Synaptic Activity in Lobster 



by Harry Grundfest and John P. Reuben .... 92 



Neuromuscular Synaptic Activity in the Crab {Cancer magister) 



by Ernst Florey and Graham Hoyle . . . . .105 



Presynaptic Inhibition at the Neuromuscular Junction in Crayfish 



by Josef Dudel and Stephan W. Kuffler . . .111 



Ion Movements during Vagus Inhibition of the Heart 



by O. F. Hutter . . . . . . .114 



On the Problem of Impulse Conduction in the Atrium 



by J. W. Woodbury and W. E. Crill 124 



81070 



