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Sixty years of neurological surgery.

I first became interested in neurological surgery during my freshman year as a medical student at the University of Iowa in 1923. During a neuroanatomy course in which we used a textbook written by Stephen Walter Ranson, I became intrigued with the way he posed problems of lesion localization in the nervous system. My interest grew during the following summer when I had the opportunity to work with a general surgeon, John O'Keefe, who allowed me to study his patients with neurological disorders. When I returned to Iowa City that autumn I went directly to the professor of psychiatry and neuropathology, Samuel T. Orton, and told him of my desire to pursue a career in neurological surgery. He advised me first to learn more about the pathology of the nervous system—a wise recommendation. To begin, I studied a newly published book on gliomas of the nervous system, written by Percival