With a scientific eye on matchmaking, Professor Wallace, marriage counselor, with classes in Social Research and Marriage and the Family at Los Angeles State College for nine years, ran a lonely hearts club for six years under his middle name and without detection. This is the story of Personal Acquaintance Service, bristling with statistics on:- why he used this frowned-on device, how his questionnaires evaluated trait scores and indicated proper selections, what proportions of what age and type people responded to his ads in the pulps (no other media will carry such advertising), the mounting work load of correspondence and correlation (this led to an electric sorting machine), the incidence of crime, misrepresentation and misconduct in his clients, the finances involved, etc., etc. His aim of ""mate selection"" enabled him to refine his system, advance to cultural equality to supplement the trait scores and to be more than a little smug over the marriages that resulted and the proofs that they were successful. Naturally ""case histories"" are part of the picture and open up a newer, wider view of lonely people for whom ""love by mail"" (properly handled) is the only chance. The response to his article in McCall's last year after he had closed PAS was an even greater proof of the need of screened introductions. Human as well as sociological interest.