Table of Contents 



I. Receptors 



1. Chemoreceptor Mechanisms. Vincent G. Dethier 1 



2. Visual Receptors as Biological Transducers. E. F. MacNichol, Jr.. 34 



3. Discussion. W. D. McElroy 53 



II. Aggregates of Neurons 



1. Affinity for Wool as an Indicator of Neuropharmacological Activ- 



ity. Roland Fischer 63 



2. Oxygen Utilization in Sympathetic Ganglia. I. Effects of Anesthet- 



ics. II. Substrates for Oxidation at Rest and in Activity. Martin 



G. Larrabee and Paul Horowicz 84 



3. Discussion. Robert G. Grenell 108 



III. Membranes of Neurons 



1. The Structure of Nerve Cell Membranes. Lorin J. Mtjllins 123 



2. Discussion. Philip W. Davies 157 



IV. Summary 



Robert G. Grenell 167 



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