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This book is a real contribution to the medical literature. One cannot help admiring the clear and systematic manner with which the subject is presented. Egas Moniz first presents an unusually complete analysis of the main blood supply to the brain in normal persons. The anatomic considerations are enhanced by many lucid illustrations taken from his collection of more than six hundred instances of patients who received injections of thorium dioxide solution.
After demonstrating the normal findings, the author presents a long series of cases of tumors of the brain in which angiography had been employed. The histories are outlined, and the roentgenograms demonstrating the vascular changes considered diagnostic of lesions in various portions of the brain are presented. In many instances the brain itself is pictured, which allows easier interpretation of the cerebral angiogram. Cerebral aneurysms are beautifully visualized by the method. The marked difference in the vascularity of