FOR YEARS I have been hearing about detective stories. Almost everybody I know seems to read them, and they have long conversations about them in which I am unable to take part. I am always being reminded that the most serious public figures of our time, from Woodrow Wilson to W. B. Yeats, have been addicts of this form of fiction. Now, except for a few stories by Chesterton, for which I did not much care, I have not read any detective stories since one of the earliest, if not the earliest, of the imitators of Sherlock Holmes--a writer named Jacques Futrelle, now dead, who invented a character called the Thinking Machine and published his first volume of stories about him in 1907. Enchanted though I had been with Sherlock Holmes, I got bored with the Thinking Machine and dropped him, beginning to feel, at the age of twelve, that I was outgrowing that form of literature.
Since, however, I have recently been sampling the various types of popular merchandise, I have decided that I ought to take a look at some specimens of this kind of fiction, which has grown so tremendously popular and which is now being produced on such a scale that the book departments of magazines have had to employ special editors to cope with it. To be sure of getting