Volume VII, Part 6 brings to a conclusion the Handbook of Sensory Physiology, the publication of which has spanned 9 years. In the General Preface of Volume I it was stated that: "The purpose of this handbook is not encyclopedic completeness, nor the sort of brief summaries provided by periodic annual reviews. " The Editorial Board and the editors hope that this golden mean has been achieved: An absorbing, thorough, but nevertheless exemplary presentation should, with the aid of relevant examples, enable the reader to become accustomed with the numerous facets of the sensory system without sacrificing an overview of the subject. The main issues of sensory physiology were formulated in the nineteenth and early twentieth centuries by JOHANNES MULLER, H. VON HELMHOLTZ, E. HERING, S. EXNER, 1. VON KRIES, W. TRENDELENBURG, and E. D. ADRIAN, to name but a few. Modern development in the field has been characterized by interdisciplinary cooperation, the foundation for which was laid in the second half of the nineteenth century by VON HELMHOLTZ, EXNER, MAXWELL, and others. Progress made in bio chemistry, physics, mathematics, and information theory has not only made pos sible unanticipated refinement of methods of measurement; it has above all per mitted the transformation of mere hypotheses into established, accepted theories as well as revealing new problems. However, at the same time such development has, in recent decades, resulted in the literature becoming dispersed in specialist journals; consequently, it has grown increasingly difficult to survey."

It is now generally accepted for a variety of reasons - morphological as well as physiologica- that the visual systems of arthropods provide a suitable model for the study of information proces sing in neuronal networks. Unlike the neurophysiology of the visual pathway in the frog and the cat which is more than adequately documented, recent work on the compound eye and optical ganglia of spiders, crustaceans, and insects has scarcely been summarized. In order to fill this void so that others, especially vertebrate neurophysiologists may become familiar with the advan tages of these systems, our group at Zurich University organized here in March 1972, a European meeting to discuss the anatomical. ! neurophysiological and behavioral knowledge on the compound eye and the visual. pathway of arthropods. Systems analysis was regarded as the main theme of the conference, but systems analysis of a network of neurons cannot be done as a mere "black-box" maneuver. The conference therefore tried to reconcile neurophysiology and behavioral analysis in order to make predictions about a necessary and sufficient neural structure. The "wiring dia grams" of such a structure might then be confirmed histologically. Hence the aim of the conferen ce was not to deal only with the structure and function of the compound eye - i. e.

This book describes the basic theory and design tools you need to develop, design, and analyze high-resolution radar systems, subsystems, components, and processing methods.