It has been said that three fictional characters are known to readersa ll over the world: Hamlet, Robinson Crusoe- and Sherlock Holmes. Holmes has been called ' The most convincing, the most brilliant, the most congenial and well loved of all the detectives of fiction, " and his stalwart friend and biographer, John H. Watson, M.D., late of the Army Medical Department" the most famous and best-loved physician in literature".