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The particularly good reception enjoyed by our'The Human Central Ner­ vous System, a Synopsis and Atlas'has made a second edition necessary, hardly more than two years after its first appearance: This new edition enabled us to make a number of corrections, but it was judged premature to undertake a thorough updating of the text. However, a major improvement - suggested by some reviewers and many colleagues - is that in this new edition the abbreviations in the figures have been replaced by the full Latin terms. We want to emphasize that the study of this book can facilitate and deepen but never replace the study of the anatomical preparation. Acquaintance and histology of nervous tissue has been taken for with the basic cytology granted. This book is evidently often consulted with the aim of looking up a particular and its topographical relations. This cer­ structure together with its name is tainly one of the purposes of the book. We are, however, of the opinion that during a systematic study of the figures showing the functional systems in part IV, perusal of the accompanying text will be necessary. As a matter of fact the spatial representations of the fibre systems are no more than a visualization of the most salient features discussed in the text. The pictures are so to speak a snapshot of the current knowledge of a particular functional system within the central nervous system; no less, but no more either.

Purpose and Plan This atlas, though primarily intended for medical students, mayaiso be expected to This atlas has been designed with the object be useful as a quick pictorial review for of providing a comprehensive pictorial practitioners in the various neurological survey of the macroscopic and microscopic SClences. structure of the human central nervous s- tem. The pictorial material encompasses 154 Material, Techniques, and Preparation half-tone and li ne drawings, all derived of the Illustrations from original macroscopic and microscopic preparations. Considerable thought has The gross anatomical section of this atlas been given in the preparation of these draw­ is based on eight brains and one spinal cord of adult individuals with no record of n- ings to an optimal combination of c1arity and exactness. Moreover great pains have rological diseases. These specimens were been taken to achieve a maximal coherence fixed for at least two months in formalin. of thematically related figures. The illustra­ One specimen was used for the illustrations tions are arranged in four sections. The first showing the external morphology. This section depicts the gross appearance and brain was then serially sliced into 2-mm­ three-dimensional structure of the brain thick sections in the coronal plane. Three and spinal cord. The second section in­ other brains were sliced in the three other c1udes dra wings of a number of wh oIe brain conventional planes: sagittal, horizontal slices, sectioned in four different directions.