Not often a book summarizing two decades of study is nevertheless only the author's sixth formal pub lication on the subject. Such is the case with Connections of the Cerebral Cortex. The first and largest section is devoted to cortico-subcortical and associational connections, traced by serial chartings of Marchi degenerations from nearly 200 experimental lesions in the monkey. The material in this chapter alone could easily have been disseminated over a score of separate journal publications. To have it all available in one volume is a convenience for which the author deserves commendation.
Successive chapters discuss the anatomy of the thalamus and thalamocortical radiation, and compare findings in the monkey with the author's earlier studies on the rat. The book concludes with an annotated atlas in which the experimental findings are applied to the human brain. Cytoarchitectonic studies have led the author to introduce several modifications of Brodmann's plan of