john ferrier is the pseudonym of a young neurologist who, having completed residencies and research fellowships at oxford, vancouver, denver, cornell, and columbia, returned to his home in a medium-sized rocky mountain city to take up private practice. ferrier, whose recreations range from architecture to jazz, combines a passionate interest in neurological research with the sensitivity and compassion of the best clinicians. for over a year, widely acclaimed writer russell martin followed him through the days and ways of his practice. the result is a fascinating picture of the brain and its diseases, a moving account of human courage, and a revealing insight into the practice of modern medicine. matters gray and white is science writing at its very best. "a book of fascinating insights into modern medical practices and heartening accounts of individual courage. ... martin records with uncommon sensitivity and understanding the clinical work and thoughts or a first-rate physician. ... it is excellent." new york times book review "an honest and moving book that covers a wide swatch and leaves us full of awe." washington post book world "compelling ... martin doesn't merely isolate cases, he weaves them together with the skill of a novelist." the denver post